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Journal articles on the topic 'Foliose lichen'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Young, Alexander R., Jesse E. D. Miller, John Villella, Greg Carey, and William R. Miller. "Epiphyte type and sampling height impact mesofauna communities in Douglas-fir trees." PeerJ 6 (October 12, 2018): e5699. http://dx.doi.org/10.7717/peerj.5699.

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Branches and boles of trees in wet forests are often carpeted with lichens and bryophytes capable of providing periodically saturated habitat suitable for microfauna, animals that include tardigrades, rotifers, nematodes, mites, and springtails. Although resident microfauna likely exhibit habitat preferences structured by fine-scale environmental factors, previous studies rarely report associations between microfaunal communities and habitat type (e.g., communities that develop in lichens vs. bryophytes). Microfaunal communities were examined across three types of epiphyte and three sampling h

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2

MARCHI, ANGELO DE, and DAVIDE CASSI. "FRACTAL GEOMETRY AND ECOLOGY OF LICHENS." Fractals 01, no. 03 (1993): 346–53. http://dx.doi.org/10.1142/s0218348x9300037x.

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From a morphological point of view lichens are usually classified in three life-forms: foliose, crustose and fruticose. In this paper we consider one lichen for each of them [a foliose (Parmelia tiliacea), a crustose (Rhizocarpon geographicum) and a fruticose (Cladonia mediterranea) lichen], and by direct measurement we show that these samples have fractal geometry and we detemine their fractal dimensions and fractality ranges. On the basis of these results, we then discuss the possible ecological causes that could have selected these geometries and that should be considered in a realistic mat

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3

MANGELSON, NOLAN F., DYLAN C. ARGYLE, RYAN KELLY, et al. "ELEMENTAL ANALYSIS OF LICHENS FROM THE WESTERN UNITED STATES: DISTRIBUTION OF PHOSPHORUS AND CALCIUM FROM A LARGE DATA SET." International Journal of PIXE 12, no. 03n04 (2002): 167–73. http://dx.doi.org/10.1142/s0129083502000275.

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Lichen samples were collected and observations about lichen communities were recorded at sites in the intermountain western United States. Specifically the states of Idaho, Montana, Wyoming, Nevada, Utah, Colorado, Arizona, and New Mexico were included in this study. The minor and trace-element concentrations in many of the lichens collected were determined by proton induced X-ray emission (PIXE). These data are part of a base line assessment of current air pollution conditions in this region. These data also provide an opportunity to study some aspects of lichen physiology. Using the data fro

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4

GAUSLAA, Yngvar, Marit LIE, and Mikael OHLSON. "Epiphytic lichen biomass in a boreal Norway spruce forest." Lichenologist 40, no. 3 (2008): 257–66. http://dx.doi.org/10.1017/s0024282908007664.

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Abstract:Alectorioid and foliose lichens were weighed from full-size branches of Picea abies cut at two canopy heights in 100 trees in an old subalpine forested area in eastern Norway. The mean lichen biomass per branch decreased from 46 to 37 g moving upwards from 2–3 to 5–6 m canopy height. The lichen biomass correlated strongly with branch size variables, branch diameter alone explaining 48 of the variation in lichen biomass per branch (n=200). The alectorioid/foliose biomass ratio increased from 0·149 at 2–3 m to 0·316 at 5–6 m. Site factors reflecting openness of the canopy were computed

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Štepigová, J., H. Vráblíková, J. Lang, K. Večeřová, and M. Barták. "Glutathione and zeaxanthin formation during high light stress in foliose lichens." Plant, Soil and Environment 53, No. 8 (2008): 340–44. http://dx.doi.org/10.17221/2187-pse.

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In the presented study, we describe techniques for glutathione and pigment determination in lichens used in our laboratory. Glutathione and xanthophyll cycle pigments, especially zeaxanthin, are important antioxidants protecting plants against various stresses. In our laboratory, the high light stress in lichens has been intensively studied for several years. We extract glutathione in HCl and determine it by thiol-binding fluorescence label monobromobimane. For pigment determination, homogenized lichen thalli are extracted with pure acetone. According to our results, the total amount of glutat

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6

Deduke, C., T. Booth, and M. D. Piercey-Normore. "Lichen fecundity on the Precambrian Shield: an alternative life history strategy approach." Botany 92, no. 10 (2014): 723–35. http://dx.doi.org/10.1139/cjb-2014-0086.

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Symbiotic interactions are widespread in nature, but the relationship between life history, fecundity, and habitat specificity has been underexplored. This study investigated the life history strategies of foliose saxicolous lichens relative to their surrounding communities. Macrolichens were collected from 39 transects in Manitoba and Ontario. Frequency and percentage of ground cover of macrolichens, environmental variables, and numbers of apothecia and ascospores were recorded. Lichen assemblages were characterized using species similarity in a cluster analysis and ordination methods and wer

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7

Aptroot, André, and Matty P. Berg. "Collembola help lichens in competition with algae." Lichenologist 36, no. 2 (2004): 167–69. http://dx.doi.org/10.1017/s0024282904014082.

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Collembola are terrestrial arthropods that prefer humid environments, probably because their relatively thin chitinous carapace is vulnerable to dehydration. They feed primarily on algae, but certain Collembola may feed on lichens (Leinaas & Somme 1984). They are often found in lichen samples, but the lichens involved do not generally appear to be damaged. Microclimatic conditions within lichens may favour occupation by Collembola as the humidity in the interior of foliose lichen thalli may be relatively high compared to that of the surroundings (Prinzig & Wirtz 1997).

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8

Coxson, Darwyn, Susan Stevenson, and Jocelyn Campbell. "Short-term impacts of partial cutting on lichen retention and canopy microclimate in an Engelmann spruce subalpine fir forest in north-central British Columbia." Canadian Journal of Forest Research 33, no. 5 (2003): 830–41. http://dx.doi.org/10.1139/x03-006.

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The retention of canopy lichens (Alectoria, Bryoria, and foliose) in group selection (GS) and single-tree selection (STS) partial cuts (30% removal) was studied within a subalpine sprucefir forest (Picea englemannii Parry ex Engelm. Abies lasiocarpa (Hook.) Nutt.) in north-central British Columbia. Baseline canopy lichen loading (preharvest and immediate postharvest) was compared with lichen loading 2 years after harvesting, using both ground- and canopy-based sampling techniques. Additionally, canopy microclimate was compared between GS and adjacent stand areas with no harvest treatment (N

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9

Tolpysheva, T. Yu. "Lichens in birds nest construction of chaffinch (Fringilla coelebs)." SOCIALNO-ECOLOGICHESKIE TECHNOLOGII 9, no. 1 (2019): 113–20. http://dx.doi.org/10.31862/2500-2961-2019-9-1-113-120.

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Chaffinch used epiphytic foliose lichen Hypogymnia physodes for construction of nest. The living fragments of thallus were tenuously attached by their lower black surface to the outward side of the birds nest. Abundance of this species on the trees around the bird’s nest of chaffinch showed that lichen was used for camouflage of birds’ nest. In addition single thallus fragments of foliose lichen Parmelia sulcata were used with this purpose too.

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10

Rolstad, Jørund, and Erlend Rolstad. "Intercalary growth causes geometric length expansion in Methuselah’s beard lichen (Usnea longissima)." Botany 86, no. 10 (2008): 1224–32. http://dx.doi.org/10.1139/b08-081.

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In sharp contrast to many slow-growing lichens, some epiphytic pendulous and foliose lichens display striking biomass accumulation in favorable habitats. Whereas lichen growth rates have received considerable attention, comparatively few detailed studies of growth patterns have been carried out. Generally, most lichens seem to grow apically, with only pseudomeristomatic tissue confined to lobe margins and branch tips. However, some species appear to retain the capacity to expand throughout the thallus, thereby increasing their growth potential. Such intercalary growth processes have proved dif

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Seminara, Agnese, Joerg Fritz, Michael P. Brenner, and Anne Pringle. "A universal growth limit for circular lichens." Journal of The Royal Society Interface 15, no. 143 (2018): 20180063. http://dx.doi.org/10.1098/rsif.2018.0063.

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Lichens fix carbon dioxide from the air to build biomass. Crustose and foliose lichens grow as nearly flat, circular disks. Smaller individuals grow slowly, but with small, steady increases in radial growth rate over time. Larger individuals grow more quickly and with a roughly constant radial velocity maintained over the lifetime of the lichen. We translate the coffee drop effect to model lichen growth and demonstrate that growth patterns follow directly from the diffusion of carbon dioxide in the air around a lichen. When a lichen is small, carbon dioxide is fixed across its surface, and the

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Dietrich, Michael, and Christoph Scheidegger. "Frequency, Diversity and Ecological Strategies of Epiphytic Lichens in the Swiss Central Plateau and the Pre-Alps." Lichenologist 29, no. 3 (1997): 237–58. http://dx.doi.org/10.1006/lich.1996.0074.

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AbstractTo identify representative quantitative criteria for the creation of a future Red List of epiphytic lichens, 849 trees in 132 long-term ecological observation plots in the Swiss Central Plateau and the Pre-Alps were surveyed by standard sampling. Based on the trees, frequency data of the lichen taxa observed are described by the log series model, indicating the controlling effect of few ecological factors. Based on the plots, four classes of scarcity, each comprising 25% of the species, were established. As a contribution to the development of a national, representative survey of liche

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Alverdiyeva, S. M. "DIVERSITY OF FOLIOSE LICHENSPECIES IN AZERBAIJAN." Bulletin of Nizhnevartovsk State University, no. 2 (June 15, 2019): 20–31. http://dx.doi.org/10.36906/2311-4444/19-2/03.

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This article consolidates lichenological data on foliose lichens of Azerbaijan and addresses their species diversity. It was determined that the studied lichens belong to classes Eurotiomycetes, Lecanoromycetes and Lichenomycetes of the phylum Ascomycota. They are represented by 166 species, including 8 orders: Caliciales , Candelariales, Lecanorales , Peltigerales , Teloschistales , Umbilicariales , Verrucariales , Lichinales ; 15 families: Candelariaceae, Collemataceae, Lecanoraceae, Lobariaceae, Nephromataceae, Pannariaceae, Parmeliacea e, Peltigeraceae, Peltylaceae, Physciaceae , Placynthi

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14

Zyatnina, M. V., L. S. Yakovchenko, and E. A. Davydov. "Materials to the lichen biota of the Sailugemsky National Park." Проблемы ботаники Южной Сибири и Монголии 19, no. 1 (2020): 124–28. http://dx.doi.org/10.14258/pbssm.2020025.

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Thirty three lichen species from 24 genera and 12 families are listed for the first time for the SailugemskyNational Park. Lichen families Parmeliaceae (12 species), Teloschistaceae (4), Peltigeraceae (3), and Physciaceae (3)comprise a majority of the species. The studied lichens are characterized by various growth forms. Only three squamulosespecies represent the true epigeic lichens. 16 macrolichens (13 fruticose and 3 foliose) are hemiepigeic. The group onplant debris is represented by 13 microlichens (9 crustose and 4 squamulose). Among them, 5 species were found, usuallyinhabit bark of tr

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15

Yuliani, Rida, Witiyasti Imaningsih, and Tri Wira Yuwati. "Lichen as bioindicator of air quality at buffer zone of Banjarbaru town." Jurnal Galam 2, no. 1 (2021): 54–65. http://dx.doi.org/10.20886/glm.2021.2.1.54-65.

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Air pollution is one of the main issues faced by urban areas. Therefore, morphological characteristic and colony coverage of lichen growing at different scale air-polluted area could become as a bioindicator of their air quality. This research aims to determine the condition of lichen in spots located at near and far from the main road (width ± 29 meter) in urban area at Banjarbaru town. This research used descriptive method with purposive sampling technique. Sample were obtained from 2 plots those were far and near the main road, each plot represented by samples from 5 different trees (densed

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16

Pandey, Anand, Awadhesh Kumar, and Anupam Dikshit. "Management of Dermatophytoses by Foliose Lichen; Heterodermia diademata (Taylor) D.D. Awasthi." Science & Technology Journal 5, no. 2 (2017): 79–84. http://dx.doi.org/10.22232/stj.2017.05.02.02.

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Lichens are demarcated as an association of two distinct and dissimilar components; the mycobiont (a fungus) and the phycobionts (an alga) forming a composite organism. The recent advancement in science has paid much attention on the biological roles of lichen secondary substances; which are attributed with a lot of biological activities, such as antibacterial, antifungal, antiviral, anti-inflammatory, anti-tumor, and antioxidant activities. The current research aims to unravel the fungicidal activity of lichen Heterodermia diademata, ethanolic extract (HDE) against prevalent superficial infec

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17

Sharma, Sachin, Anil K. Raina, and D. K. Upreti. "A preliminary study on lichen diversity of Kailash and its environs, Bhaderwah, J&K." Environment Conservation Journal 15, no. 1&2 (2014): 191–93. http://dx.doi.org/10.36953/ecj.2014.151225.

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A preliminary survey of lichen diversity in the sub-alpine and alpine ecosystem of Kailash and its environs in upper Bhaderwah region of J&K state has revealed the occurrence of 17 species belonging to 11 families and 15 genera. Parmaliaceae has been recorded as the largest family with 4 species and 4 genera and is followed by Verrucariaceae and Cladoniaceae, each with 2 species and 1 genus. Foliose lichens are dominating the area and are represented by 8 species while crustose are represented by 4 species only. Both, corticolous and saxicolous lichen are represented by 8 species each whil

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Mafaza, Husna, Murningsih Murningsih, and Jumari Jumari. "Keanekaragaman Jenis Lichen di Kota Semarang." Life Science 8, no. 1 (2019): 10–16. http://dx.doi.org/10.15294/lifesci.v8i1.29985.

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Lichen is often used as a bioindicator of air pollution in an area because it is sensitive to pollution. The morphological structure of lichen that does not have a cuticle, stomata, and absorptive organ, forces lichens to survive under the stress of pollutants found in the air. The sensitivity of lichen to air pollution can be seen through changes in diversity. The purpose of this study was to examine the diversity of species of lichens, to assess the environmental conditions and shade trees as habitat for lichens in the city of Semarang. The research was conducted from October to November 201

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Van Der Veen, Cornelis J., and Bea M. Csatho. "Spectral Characteristics of Greenland Lichens." Géographie physique et Quaternaire 59, no. 1 (2006): 63–73. http://dx.doi.org/10.7202/013737ar.

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Abstract Spectral reflectance measurements conducted during two field campaigns in west Greenland, and in the laboratory using samples collected during those campaigns, are discussed to evaluate the spectral signature of lichens. Given the diversity in lichen species, colors, and appearance — ranging from crust-like (crustose) to almost like mini shrubs (fructicose) — it is not surprising that no single signature was found. Some of the brighter fructicose lichens have reflectance characteristics very similar to those of green vegetation, with a pronounced rise in reflectivity around 750 nm. Ho

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Souza-Egipsy, Virginia, Jacek Wierzchos, Jose Vicente García-Ramos, and Carmen Ascaso. "Chemical and Ultrastructural Features of the Lichen-volcanic/Sedimentary Rock Interface in a Semiarid Region (Almería, Spain)." Lichenologist 34, no. 2 (2002): 155–67. http://dx.doi.org/10.1006/lich.2001.0371.

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AbstractThe chemical and ultrastructural features of the interface formed by different biotypes of saxicolous lichen species with their rock substrata were investigated in the semiarid habitat of the SE Iberian Peninsula and the relationships between the bioweathering patterns observed and lichen colonization selectivity towards the different rock substrata evaluated. Xanthoria parietina was able to fix to the rock substratum by the adherence of single cell walls from the lower cortex. Neofuscelia pulla used rhizines and loose groups of hyphae for attachment of the thallus to the rock. Coloniz

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Sillett, Stephen C., and Matthew N. Goslin. "Distribution of epiphytic macrolichens in relation to remnant trees in a multiple-age Douglas-fir forest." Canadian Journal of Forest Research 29, no. 8 (1999): 1204–15. http://dx.doi.org/10.1139/x99-081.

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Alternatives to clear-cutting are being implemented to increase biodiversity of managed forests in the Pacific Northwest. Lichens are an integral component of old growth, but lichen biomass develops slowly in forests. We evaluated the long-term potential of live tree retention for lichen conservation in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) forests. We sampled lichen litterfall in a 2-ha stand that contained 200- to 600-year-old remnant trees scattered in a forest composed mostly of 100-year-old trees that established following fire. We used association, principal components, and

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Sheikh, Mukhtar A., Anil K. Raina, and D. K. Upreti. "Lichen flora of Surinsar-Mansar wildlife sanctuary, J&K." Journal of Applied and Natural Science 1, no. 1 (2009): 79–81. http://dx.doi.org/10.31018/jans.v1i1.43.

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The present study conducted to enumerate the lichens from the so far unexplored Surinsar-Mansar wildlife sanctuary, J&K, revealed the presence of 30 species belonging to 18 genera from 14 families. The species belonged to different growth forms (21 crustose, 8 foliose and 1 fruticose) and are also growing on various substrata (corticolous-17 and saxicolous-13). Mangifera indica hosted the maximum number (12) while Pinus roxburghii did not host any lichen species in this area.

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Adamo, P., A. Marchetiello, and P. Violante. "The Weathering of Mafic Rocks by Lichens." Lichenologist 25, no. 3 (1993): 285–97. http://dx.doi.org/10.1006/lich.1993.1033.

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AbstractThe weathering phenomena resulting from the growth of six foliose and crustose lichens (Parmelia subrudecta, Xanthoria ectaneoides, Parmelia conspersa, Aspicilia radiosa, Caloplaca sp. and Ochrolechia parella) on three mafic rocks have been studied. The bioweathering results in more or less extensive fragmentation and corrosion of the mineral surfaces immediately beneath the lichen thalli and in the formation, in the thallus or at the rock-lichen interface, of secondary products. The significant amounts of whewellite found in all interfaces, and the bipiramids of weddellite detected at

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24

Vinayaka, K. S. "Diversity & Distribution of Tropical Macrolichens in Shettihalli Wildlife Sanctuary, Western Ghats, Southern India." Plant Science Today 3, no. 2 (2016): 211. http://dx.doi.org/10.14719/pst.2016.3.2.214.

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A total of 58 species of lichens were documented from the present study area, which is located between 13°40ʹ and 14°05ʹ N to 75°10ʹ and 75°35ʹ E longitude with wide range of ecosystem diversity at Shettihalli wildlife sanctuary, Shimoga district of Karnataka, India. We have surveyed a total area of 396 sq km which supports for 41 genera of lichens from 22 families. Some important lichen genera of the areas are Ramalina, Usnea, Heteroderma, Parmotrema etc. Corticolous lichens were found to be dominated in abundance, represented by 86%. Crustose lichens were represented by 54 species followed b

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Paukov, Alexander, Anzhelika Teptina, Maria Morozova, et al. "The Effects of Edaphic and Climatic Factors on Secondary Lichen Chemistry: A Case Study Using Saxicolous Lichens." Diversity 11, no. 6 (2019): 94. http://dx.doi.org/10.3390/d11060094.

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Diversity of secondary lichen metabolites and their relationship to substrate and environmental parameters were studied in saxicolous lichens in the Middle and South Urals of Russia. Atranorin, usnic acid, gyrophoric acid, zeorin, norstictic acid, antraquinones and stictic acid were found in 73, 42, 41, 37, 36, 35 and 32 species, respectively, of 543 taxa collected. One hundred and ninety six species (i.e., 36% of total species documented) contained no secondary metabolites. Spectra of secondary metabolites of crustose lichens varied on different rock types, while in fruticose and foliose grou

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Coxson, Darwyn S. "Impedance Measurement of Thallus Moisture Content in Lichens." Lichenologist 23, no. 1 (1991): 77–84. http://dx.doi.org/10.1017/s0024282991000130.

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AbstractThe indirect determination of water content in lichen thalli by means of impedance measurement is described. This technique applies an alternating current between small clips placed at the margins of lichen thalli. Two zones of sensitivity were apparent in measurements with the foliose lichen Xanthoparmelia chlorochroa. Ready discrimination was provided between fully saturated thalli and thalli with standing surface water films. Similarly, this technique proved highly accurate as a measurement of thallus moisture content at water potentials of –2·5 MPa and less (between 0 and 40% water

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SCUTARI, Nora C., Mónica B. BERTILLER, and Analía L. CARRERA. "Soil-associated lichens in rangelands of north-eastern Patagonia. Lichen groups and species with potential as bioindicators of grazing disturbance." Lichenologist 36, no. 6 (2004): 405–12. http://dx.doi.org/10.1017/s0024282904014008.

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Soil-associated lichen species characteristic of north-eastern Patagonia are classified by cluster analysis into six groups using ecological and morphological characters. The constancy of species, the total number of species, the number of species per crust and the relative frequency of species are analysed at sites with different grazing levels: three non-grazed, three regulary grazed, and three heavily grazed. Using the results, the potential use of lichen groups as bioindicators of rangeland conservation and degradation are explored. Species of three lichen groups (group A: lichens growing

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John, Elizabeth. "Distribution patterns and interthalline interactions of epiphytic foliose lichens." Canadian Journal of Botany 70, no. 4 (1992): 818–23. http://dx.doi.org/10.1139/b92-104.

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The foliose lichens of a corticolous epiphyte community were sampled using a grid of points and nearest neighbour sampling. Most species were found to have nonrandom distributions with respect to height and aspect on the tree trunk. The tendency of species to form exclusive patches and to contact other species showed large interspecific differences. Some formed monocultures and had fewer interspecific contacts than expected, while others did not form large patches and had more interspecific contacts than expected. Investigation of interspecific thallus overlaps revealed a hierarchy in which he

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Tsurykau, A. G. "Corticolous Lichens of Belarus. II. Obligate and Facultative Epiphytes." Bulletin of Irkutsk State University. Series Biology. Ecology 35 (2021): 51–60. http://dx.doi.org/10.26516/2073-3372.2021.35.51.

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The lichen biota of Belarus lists 406 corticolous species. Of these, 213 (35.7%) species are obligate epiphytes. Crustose lichens make up the majority of obligate epiphytes (157 species, or 73.7%). Apparently, this can indicate the decisive role of the morphology and chemistry of the substrate for the closely contacted lichen thallus. Facultative epiphytes are represented by 193 species, which are quite widely represented by foliose and fruticose life forms (51.3%). Facultative epiphytes inhabit rotting and processed wood, stony substrates, soil (including forest litter), mosses, leaves (needl

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BANIYA, Chitra Bahadur, Torstein SOLHØY, Yngvar GAUSLAA, and Michael W. PALMER. "The elevation gradient of lichen species richness in Nepal." Lichenologist 42, no. 1 (2009): 83–96. http://dx.doi.org/10.1017/s0024282909008627.

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AbstractThis study of elevation gradients of lichen species richness in Nepal aimed to compare distribution patterns of different life-forms, substratum affinities, photobiont types, and Nepalese endemism. Distribution patterns of lichens were compared with elevational patterns shown by a wide range of taxonomic groups of plants along the Nepalese Himalayan elevational gradient between 200–7400m. We used published data on the elevation records of 525 Nepalese lichen species to interpolate presence between the maximum and minimum recorded elevations, thereby giving estimates of lichen species r

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Pratama, Ari, and Manap Trianto. "Diversity of Lichen in Mangrove Forest of Tomoli Village Parigi Moutong Regency." BIO-EDU: Jurnal Pendidikan Biologi 5, no. 3 (2020): 140–50. http://dx.doi.org/10.32938/jbe.v5i3.730.

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Lichen is an organism resulting from a symbiotic association between fungi and algae in mutualistic symbiosis and eroticism, forming a morphological unity that is different from other species from its constituent components. This study aims to determine the level of lichen species diversity that grows in mangrove forests in Tomoli Village, Parigi Moutong Regency. This research was conducted in July 2019. The method used in this study was a survey method, the sampling technique was purposive sampling, namely by using a 10 cm x 10 cm plot on the mangrove trees in each path at the research locati

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Cohen, Peter A. "Halogenated anthraquinones from the rare southern Illinois lichen Lasallia Papulosa." Lichenologist 34, no. 6 (2002): 521–25. http://dx.doi.org/10.1006/lich.2002.0419.

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AbstractFour anthraquinones were isolated from the foliose lichen, Lasallia papulosa (Ach.) Llano. Two of the anthraquinones are known compounds, previously isolated from Lasallia papulosa, while the other two were reported previously as secondary metabolites from laboratory-cultured Nephroma laevigatum, and are isolated here for the first time from lichens in their natural habitat. All compounds were characterized by UV spectrophotometry, mass spectrometry, 1H NMR and 13C NMR. The products were identified as 7-chloroemodin, valsarin (7-chloro-5-hydroxyemodin), 5-chloro-1-O-methylemodin and 5-

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Murningsih, Murningsih, and Husna Mafazaa. "Jenis-Jenis Lichen Di Kampus Undip Semarang." Bioma : Berkala Ilmiah Biologi 18, no. 2 (2016): 20. http://dx.doi.org/10.14710/bioma.18.2.20-29.

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Lichen is a symbion organism which own huge positive effect over environment. Lichen is formed by a symbiosis between fungi (mikobiont) from Ascomycetes and Basidiomycetes, and alga (fikobiont) from Cyanobacteria or Chlorophyceae. Corticolous lichens lives as an epiphyte in substrate of skin branches. It grows in Diponegoro University (Undip) campus area where a lot of shaded trees can be found as the substrate. The research aimed to define the names of lichen in Undip area by using purposive random sampling. The sampling was found in four locations: 1. Eastern of green boulevard, in front of

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Piercey-Normore, Michele D. "Lichens from the Hudson Bay Lowlands: diversity in the southeastern peatlands of Wapusk National Park, Manitoba." Canadian Journal of Botany 84, no. 12 (2006): 1781–93. http://dx.doi.org/10.1139/b06-141.

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Peatlands form an important component of the Northern Hemisphere. They provide substrate for lichen growth and are used by large mammals such as polar bears, caribou, and humans. This study provides the first annotated species list of lichens on the peatlands of Wapusk National Park, Manitoba. It also provides insight into the chemical and genetic diversity of members of Cladonia that dominate the peatlands. Ninety-three species of lichen-forming fungi are reported for the peatlands, fewer than that reported for the coastal beach ridges in Wapusk National Park. This study reports six species o

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Nascimbene, Juri, Lorenzo Marini, and Pier Luigi Nimis. "Influence of tree species on epiphytic macrolichens in temperate mixed forests of northern Italy." Canadian Journal of Forest Research 39, no. 4 (2009): 785–91. http://dx.doi.org/10.1139/x09-013.

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Tree species is a key factor in shaping epiphytic lichen communities. In managed forests, tree species composition is mainly controlled by forest management, with important consequences on lichen diversity. The main aim of this work was to evaluate the differences at tree level in macrolichen richness and composition between Abies alba Mill. and Fagus sylvatica L. in a temperate mixed forest in northern Italy, in addition to evaluating two different proportions of the two species at the stand level. Abies alba and F. sylvatica host lichen communities including several rare and sensitive specie

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ARMSTRONG, R. A. "Factors determining lobe growth in foliose lichen thalli." New Phytologist 124, no. 4 (1993): 675–79. http://dx.doi.org/10.1111/j.1469-8137.1993.tb03857.x.

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Wan, S., and C. J. Ellis. "ARE LICHEN GROWTH FORM CATEGORIES SUPPORTED BY CONTINUOUS FUNCTIONAL TRAITS: WATER-HOLDING CAPACITY AND SPECIFIC THALLUS MASS?" Edinburgh Journal of Botany 77, no. 1 (2019): 65–76. http://dx.doi.org/10.1017/s0960428619000209.

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The focus of community ecology has shifted from the description of taxonomic composition towards an understanding of community assembly based on species’ ‘functional traits’. The functional trait approach is well developed for vascular plants, utilising variability of continuous phenotypic characters that affect ecological fitness, such as specific leaf area, tissue nitrogen concentration or seed mass, to explain community structure. In contrast, community assembly studies for poikilohydric cryptogamic plants and fungi, such as lichens, remain focused on broad categorical traits such as growth

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John, Elizabeth A. "An assessment of the role of biotic interactions and dynamic processes in the organization of species in a saxicolous lichen community." Canadian Journal of Botany 67, no. 7 (1989): 2025–37. http://dx.doi.org/10.1139/b89-256.

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A saxicolous lichen community is examined for evidence of dynamic processes and biotic interactions among its members. Spatial relationships among species are examined in a series of association analyses at three scales: (i) the "nearest-neighbour" scale, i.e., associations between touching thalli; (ii) associations between thalli 10 and 20 cm apart; and (iii) associations at the scale of the whole rock face. The nearest-neighbour analysis reveals fundamental differences in the way crustose and foliose thalli sample their environment; crustose lichens are more likely to have uncolonized rock a

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Sinichkin, Evgeny Arkadyevich. "Ecological analysis of rare and endangered lichen species included in the Red Book of the Chuvash Republic." Samara Journal of Science 10, no. 2 (2021): 94–98. http://dx.doi.org/10.17816/snv2021102114.

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The paper provides an ecological analysis of rare and endangered lichen species included in the Red Book of the Chuvash Republic. The new edition, published in 2020, includes information on 256 species of plants and fungi. The Red Book of the Chuvash Republic includes 30 species of rare and endangered lichen species, 14 species are included in the list of those which are subject to special attention and need constant monitoring in the natural environment. Biomorphological analysis has shown that rare lichen species belong to 3 types, 4 classes and 7 groups of life forms. The predominant specie

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Chi, Huynh Bui Linh, Van Muoi Bui, Thi Quynh Nhu Phan, and Kim Phi Phung Nguyen. "Phenolic compounds from the lichen Parmotrema tinctorum." Science and Technology Development Journal 24, no. 1 (2021): 1842–46. http://dx.doi.org/10.32508/stdj.v24i1.2490.

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Introduction: The metabolites of lichens concentrated depsidones, depsides, and diphenyl ethers were possessed antibiotic, antifungal, antiviral, antitumor, and anticancer activities. Parmotrema tinctorum (Despr. ex Nyl.) Hale, a species of foliose lichen, is widely distributed in Lam Dong province, Vietnam. Herein, this paper describes the isolation and structure elucidation of seven compounds isolated from this lichen. Methods: Phytochemical investigations of the ethyl acetate extract of the lichen P. tinctorum led to the isolation of seven pure compounds. Their chemical structures were eluc

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KUMMEROVÁ, Marie, štěpán ZEZULKA, Jana KRULOVÁ, and Jan TŘÍSKA. "Photoinduced toxicity of fluoranthene on primary processes of photosynthesis in lichens." Lichenologist 39, no. 1 (2006): 91–100. http://dx.doi.org/10.1017/s0024282907006111.

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The effect of increasing concentrations (0·01, 0·1, 1 and 5 mg l−1) of intact (FLT) and photo-modified (phFLT) fluoranthene and the duration of exposure (1, 2, 3, 5 and 7 days) on the chlorophyll fluorescence parameters (F0, FV/FM, and ΦII) of symbiotic algae in the thalli of two foliose lichens Lasallia pustulata and Umbilicaria hirsuta was investigated. In addition the FLT concentration in thalli of both lichen species was determined and a bioconcentration factor (BCF) was calculated. The results obtained demonstrated that the concentrations of FLT and especially phFLT (1 and 5 mg l−1) appli

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APTROOT, André, and Marcela Eugenia da Silva CÁCERES. "A key to the corticolous microfoliose, foliose and related crustose lichens from Rondônia, Brazil, with the description of four new species." Lichenologist 46, no. 6 (2014): 783–99. http://dx.doi.org/10.1017/s0024282914000358.

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AbstractA key is given to the foliose and squamulose lichens known so far from Rondônia, including also corticolous crustose lichens with a chlorococcoid alga. The foliicolous Lecanorales found are also listed. The following four new corticolous Lecanorales are described from Rondônia: Calopadia granulosa with a granular, corticate thallus and ascospores 1 per ascus, 33–38×10·5–13·0 µm; Crustospathula amazonica with irregularly capitate to nearly globose, c. 0·2–0·4 mm diam. soralia on cartilaginous stalks; Flavoparmelia plicata with a thallus containing usnic and protocetraric acids, with lam

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Androsova, Vera I., Viktoria N. Tarasova, and Vadim V. Gorshkov. "Diversity of lichens and allied fungi on Norway spruce (Picea abies) in the middle boreal forests of Republic of Karelia (Russia)." Folia Cryptogamica Estonica 55 (October 19, 2018): 133–49. http://dx.doi.org/10.12697/fce.2018.55.14.

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   A detailed study of lichen diversity and estimation of epiphytic lichen cover characteristics on spruce as a key ecosystem component was performed in boreal forests of Karelia (NW Russia). The aims of the present paper are: (1) to study lichen diversity on Norway spruce in the middle boreal forests of southern Karelia (NW Russia), and (2) to estimate the main characteristics of epiphytic lichen cover on spruce trunks and branches. In total, 158 species of lichens and allied fungi were found on spruce, including 108 species on trunks, 78 on branches and 55 on snags. Sevente

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Dohi, Terumi, Yoshihito Ohmura, Kazuya Yoshimura, et al. "Radiocaesium accumulation capacity of epiphytic lichens and adjacent barks collected at the perimeter boundary site of the Fukushima Dai-ichi Nuclear Power Station." PLOS ONE 16, no. 5 (2021): e0251828. http://dx.doi.org/10.1371/journal.pone.0251828.

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We investigated the radiocaesium content of nine epiphytic foliose lichens species and the adjacent barks of Zelkova serrata (Ulmaceae, "Japanese elm") and Cerasus sp. (Rosaceae, "Cherry tree") at the boundary of the Fukushima Dai-ichi Nuclear Power Station six years after the accident in 2011. Caesium-137 activities per unit area (the 137Cs-inventory) were determined to compare radiocaesium retentions of lichens (65 specimens) and barks (44 specimens) under the same growth conditions. The 137Cs-inventory of lichens collected from Zelkova serrata and Cerasus sp. were respectively 7.9- and 3.8-

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Gauslaa, Y., K. Palmqvist, K. A. Solhaug, et al. "Growth of epiphytic old forest lichens across climatic and successional gradients." Canadian Journal of Forest Research 37, no. 10 (2007): 1832–45. http://dx.doi.org/10.1139/x07-048.

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This paper aims to assess the influence of canopy cover on lichen growth in boreal forests along a regional forest gradient. Biomass and area gain, and some acclimation traits, were assessed in the old-forest lichens Lobaria pulmonaria (L.) Hoffm., Pseudocyphellaria crocata (L.) Vain., and Usnea longissima Ach. transplanted 110 days in three successional Norway spruce ( Picea abies (L.) Karst.) forest stands (clearcut, young, and old forest) repeated along a rainfall gradient (continental, suboceanic, and Atlantic zones) in Scandinavia. Lichen growth peaked in Atlantic rainforests with mean dr

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Urbanavichus, G. P. "The foliose and fruticose lichen genera of the family Parmeliaceae in Russia and their identification key." Novosti sistematiki nizshikh rastenii 45 (2011): 242–56. http://dx.doi.org/10.31111/nsnr/2011.45.242.

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Almola, Zakaria S., Basheer A. Al-Ni'ma, and Nadeem A. Ramadan. "Lichen diversity in Amadiya and Rowanduz disricts in Iraq." Bangladesh Journal of Plant Taxonomy 24, no. 1 (2017): 23–32. http://dx.doi.org/10.3329/bjpt.v24i1.33002.

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The lichen biota of the Amadiya and Rowanduz districts in the Mountain physiogeographic region in Iraq was sampled in 2013. The samples provided 47 species belonging to 29 genera and 14 families. Among them 37 species are new records for Iraq. All species except Lichinella cribellifera and Thelidium sp. were found in Amadiya district whereas only 13 species occurred in Rowanduz district. Most of the species (59.5%) were crustose, while 27.6% were foliose, 12.7 % squamulose and none fruticose. The three most species-rich genera are Caloplaca with 7 species, Collema with 5 species and Aspicilia

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Shivanna, Rashmi, Hengameh Parizadeh, and Rajkumar H. Garampalli. "IN VITRO ANTI-OBESITY EFFECT OF MACROLICHENS HETERODERMIA LEUCOMELOS AND RAMALINA CELASTRI BY PANCREATIC LIPASE INHIBITORY ASSAY." International Journal of Pharmacy and Pharmaceutical Sciences 9, no. 5 (2017): 137. http://dx.doi.org/10.22159/ijpps.2017v9i5.13560.

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Objective: Obesity is a chronic disorder caused by an imbalance between energy intake and expenditure in which excessive fat will be deposited in adipose tissue and poses a risk to the health and well-being of humans. Agents which inhibit pancreatic lipase play an important role in the treatment of obesity. The aim of this study was to assess the potential effect of macro lichens Heterodermia leucomelos (L.) Poelt a foliose lichen and Ramalina celastri (Sprengel) Krog and Swinscow a fruticose lichen in the treatment of obesity.Methods: In vitro anti-obesity inhibitory effect of macro lichens w

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Lipnicki, Ludwik. "Kształtowanie się flory porostów zasiedlających głazy narzutowe [Formation of lichen flora populating erratic blocks]." Monographiae Botanicae 84 (2014): 5–38. http://dx.doi.org/10.5586/mb.1998.003.

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The thesis includes the results of over ten years' research and observations of the population process of epilithic lichens on the newly exposed surfaces of erratic boulders. The research was carried out in the 'Kręgi Kamienne' Archaeological and Nature Reserve located in the Tucholskie Forest (N Poland). The thesis presents the seąuence of population and the quantitative changes of pioneering lichens. The following phases of initial stage of succession, which have lasted for at least 30 years, were distinguished and characterized: the phase of pulverulent lichens, the beginning phase of <e

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Bebe Raazia Bacchus and Phillip N.B. Da Silva. "Host plant specificity of corticolous lichens in urban and suburban New Amsterdam, Berbice, Guyana." GSC Biological and Pharmaceutical Sciences 14, no. 1 (2021): 101–8. http://dx.doi.org/10.30574/gscbps.2021.14.1.0014.

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In this study, host plant - lichen specificity was investigated. Data was collected from 1000m2 sampling plots at each of four locations with an established 50m x 20m plot at each site. Forty-one trees from across five species were examined using (10cm by 50cm) ladder quadrats on tree trunks (N, S, E, W) at 150cm height. A total of 14978 individual lichens were identified that yielded 10 families, 13 genera and 18 species. Swietenia mahagoni showed the highest average corticolous lichen species composition, followed by Terminalia catappa and Melicoccus bijugales respectively. Cocos nucifera ha

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