Journal articles: 'Cryptogamia'

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Mitchell, Robert. "Cryptogamia." European Romantic Review 21, no. 5 (October 2010): 631–51. http://dx.doi.org/10.1080/10509585.2010.499030.

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Kinnell, PIA, CJ Chartres, and CL Watson. "The effects of fire on the soil in a degraded semiarid woodland .II. Susceptibility of the soil to erosion by shallow rain impacted flow." Soil Research 28, no. 5 (1990): 779. http://dx.doi.org/10.1071/sr9900779.

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Small (500 by 250 by 100 mm) soil monoliths collected from experimental plots subjected to various fire frequencies in a semi-arid woodland near Coolabah, N.S.W., were tested for their susceptibility to erosion by rain-impacted flows under laboratory conditions. In the tests, the erosive stress applied to the soil surfaces was controlled by using drops of uniform size (2.7 mm) falling 11.2 m onto flows whose depths were controlled between 1 and 2.7 drop diameters. Experimental data and thin-section observations showed that cryptogams provide a high degree of protection against erosion. Sediment concentration (measured in g L-1) from cryptogam-covered plots was considerably less than that from both bare-crusted surfaces and surfaces dominated by depositional material. Surfaces with cryptogamic crusts were generally free of debris, but showed only minor signs of erosion, whereas bare-crusted and depositionary surfaces suffered pronounced lowering and tended to disintegrate. Because increasing fire frequency reduces the spatial distribution of the cryptogamic cover on the soil surface in the semi-arid woodlands, increasing fire frequency must increase the erosion hazard.

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Greene, RSB, CJ Chartres, and KC Hodgkinson. "The effects of fire on the soil in a degraded semiarid woodland .I. Cryptogam cover and physical and micromorphological properties." Soil Research 28, no. 5 (1990): 755. http://dx.doi.org/10.1071/sr9900755.

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The effects of fire on the cryptogam cover and physical and micromorphological properties of a massive red earth soil were studied in a semi-arid eucalypt woodland, heavily invaded by shrubs, near Coolabah, N.S.W. Fire reduced the cryptogam cover and concomitantly increased the depositional material produced by erosion and the area of bare surface. Annual fires for 7 years completely destroyed the cryptogamic crusts, but they recovered slowly in the absence of fire to reach the same cover as unburnt areas after about 4 years. A single fire also caused a major decline in aggregate stability of the 0-1 cm horizon, possibly because of alteration of organic cementing materials which consist of gels secreted by algae. Micromorphological observations of surface crusts showed that, as the frequency of fire increased, there was more depositional material produced by erosion coupled with the presence of thin laminated deposits. There was also less surface irregularity, fewer algal gels and less evidence of soil mixing by soil fauna. There was a significant negative relationship between the saturated infiltration rate and the number of fires (r2 = 0.63, P = 0.05). However, there was no effect of fire treatment on the unsaturated infiltration rate measured at a supply pressure of -40 mm, at which pores >0.75 mm diameter are excluded from water flow. In our burned plots, the rate of recolonization by cryptogams was relatively fast and, with approximately 4 years recovery, cryptogam cover reached the level of unburned controls. This cryptogam cover is critical in maintaining the physical properties of the soil. It is concluded, therefore, that irregular fires in this land system will not result in a permanent decline in the physical properties of the soil.

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Newmaster, Steven G., and F. Wayne Bell. "The effects of silvicultural disturbances on cryptogam diversity in the boreal-mixedwood forest." Canadian Journal of Forest Research 32, no. 1 (January 1, 2002): 38–51. http://dx.doi.org/10.1139/x01-163.

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In northern forests, cryptogams (spore producing plants) occupy a key position in forest ecosystem diversity and function. Forest harvesting and silvicultural practices have the potential to reduce cryptogam diversity. This project uses four blocks that were mechanically site prepared, planted with a single conifer species, and subsequently subjected to five conifer release treatments: (1) motor-manual cleaning, (2) mechanical brush cutting, (3) aerial application of triclopyr, (4) aerial application of glyphosate, and (5) control (untreated clearcut). Five 10 × 10 m subplots were installed in each of the five treatment plots and the uncut forest on the four blocks. Botanical surveys were conducted before and 15 years after treatments. Species richness and abundance, Shannon's and Heip's indices, and rank abundance diagrams clearly show that richness and abundance were affected by silvicultural treatments. Vegetation management treatments resulted in significant reductions in cryptogam diversity, to the point that only a few colonists and drought-tolerant species remained. Cryptogam diversity was ranked in the following order: forest > clearcut > mechanical clearing > herbicide treatment. Herbicide treatments had the greatest initial effect on species richness, species abundance, and diversity indices. Cryptogam diversity showed signs of recovery 5 years after treatments. Missed strips (untreated areas) within a clearcut provided a refuge for remnant communities of forest cryptogams that could play a key role in the rehabilitation forest diversity.

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Bokhorst, Stef, and Peter Convey. "Impact of marine vertebrates on Antarctic terrestrial micro-arthropods." Antarctic Science 28, no. 3 (February 3, 2016): 175–86. http://dx.doi.org/10.1017/s0954102015000607.

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AbstractTraits of primary producers associated with tissue quality are commonly assumed to have strong control over higher trophic levels. However, this view is largely based on studies of vascular plants, and cryptogamic vegetation has received far less attention. In this study natural gradients in nutrient concentrations in cryptogams associated with the proximity of penguin colonies on a Maritime Antarctic island were utilized to quantify the impact of nitrogen content on micro-arthropod communities. Proximity to penguin colonies increased the nitrogen concentration of cryptogams, and the penguin source was confirmed by decreasing δ15N values at greater distances from colonies. Micro-arthropod abundance, diversity (H’) and richness declined with distance from the penguin colonies, and was positively correlated with the nitrogen concentrations of cryptogams. Δ15N of micro-arthropods was positively correlated (r2=0.865, P<0.01) with δ15N of the moss Andreaea depressinervis indicating that penguin-derived nitrogen moves through Antarctic food webs across multiple trophic levels. Nitrogen content of cryptogams was correlated with associated micro-arthropods indicating that biotic interactions affect community development in Antarctic terrestrial ecosystems. The spatial patterns of Antarctic biodiversity can therefore be affected by local factors, such as marine vertebrates, beyond existing latitudinal patterns of temperature and water availability.

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Chown, S. L. "Habitat use and diet as biogeographic indicators for subantarctic Ectemnorhinini (Coleoptera: Curculionidae)." Antarctic Science 1, no. 1 (March 1989): 23–30. http://dx.doi.org/10.1017/s0954102089000052.

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Most of the species in the Ectemnorhinin are cryptogam feeders, angiosperm feeders representing a minority. It is hypothesized that this dearth of angiosperm feeders is due to previous climatic conditions, which precluded angiosperm herbivory, but allowed for the exploitation of a diverse cryptogamic flora, and that only with the post-glacial warm-up of the Subantarctic has angiosperm herbivory become possible. When examined in the light of the Quaternary history of the South Indian Ocean Province islands, evidence obtained from a study of the habitat use, diet and morphology of species within the tribe supports this hypothesis.

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Ferguson, Anneka V., Emma J. Pharo, Jamie B. Kirkpatrick, and Jon B. Marsden-Smedley. "The early effects of fire and grazing on bryophytes and lichens in tussock grassland and hummock sedgeland in north-eastern Tasmania." Australian Journal of Botany 57, no. 7 (2009): 556. http://dx.doi.org/10.1071/bt09131.

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Little is known of the interactive effects of fire and grazing on cryptogam species and assemblages. These effects were observed for bryophyte and lichen species in Tasmanian tussock grassland and hummock sedgeland several months after experimental burning and fencing. A factorial design was used on 40 randomly located and treated pairs of 1 m × 1 m quadrats in each of the vegetation types. In total, 24 cryptogam taxa were found, with grassland having a greater taxon richness, as well as higher total cryptogam cover and a different species composition, to the hummock sedgeland. There was greater cryptogam cover in the burned quadrats than the unburned quadrats in the grassland. However, only bryophytes had different species composition between burned and unburned quadrats. There was a small but significant difference in richness in hummock sedgeland, with burned being richer than unburned. Three species were more abundant in the burned than in the unburned treatments in the grassland, whereas no species responded to treatment in the sedgeland and no species responded to grazing. The fact that no species or assemblage of species was significantly reduced in cover by the burns testifies to a high degree of cryptogam resilience to this disturbance. The total lack of negative grazing effects suggests cryptogams are not a major source of sustenance for the local vertebrate herbivores. These conclusions differ from those made elsewhere in the world.

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Melekhin, Alexey V., Denis A. Davydov, Eugene A. Borovichev, Sergei S. Shalygin, and Nadezhda A. Konstantinova. "CRIS – service for input, storage and analysis of the biodiversity data of the cryptogams." Folia Cryptogamica Estonica 56 (September 6, 2019): 99–108. http://dx.doi.org/10.12697/fce.2019.56.10.

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Here we describe Cryptogamic Russian Information System (CRIS), a web service cataloguing the biodiversity of cryptogams: cyanobacteria, fungi (including lichens), and bryophytes. CRIS incorporates a wide spectrum of data types, allowing for greater ease of use. It is possible to print the labels for herbarium collections, to input literature references, media files, etc., using CRIS which has a flexible interface and specific technical abilities. Currently, CRIS contains ~ 90,000 herbarium records, including 67,861 records of bryophytes, 12,486 records of lichens and 3,800 records of cyanobacteria. Data analysis of the different taxonomic groups is provided below. Perspectives and directions for the future development of CRIS are discussed.

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Kinnell, P. I. A. "Influence of surface zones with zero detachment on erosion by rain-impacted flow." Soil Research 36, no. 2 (1998): 327. http://dx.doi.org/10.1071/s97047.

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Zones of zero detachment occur on the soil surface when cryptogamic cover protects the soil surface from erosion by rain-impacted flow. The effect of spatial variation in the distribution of these zones was examined through a computer simulation of erosion by rain-impacted flow on small (0·5-m-long) surfaces. The results from the simulations indicate that the effect of spatial variations in cryptogam cover decreases as the susceptibility of the exposed surfaces to detachment by rain-impacted flow increases. They also indicate that when the sediment being transported is dominated by fine particles, the effect of the cover on erosion will be more closely related to the average cover than when the sediment is dominated by coarse particles.

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Ellis, Christopher J. "A Role for Lichens in Botanic Gardens?" Sibbaldia: the International Journal of Botanic Garden Horticulture, no. 6 (October 31, 2008): 155–62. http://dx.doi.org/10.24823/sibbaldia.2008.40.

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Lichens are biologically diverse and ecologically important. They infuse a botanic garden with character, and are sensitive indicators for the health of our environment. Their continued recolonization of botanic gardens should be celebrated, yet is frequently greeted with trepidation. Acknowledging the under-played significance of lichens and other cryptogams, PlantNetwork organized a conference on Mosses, Ferns and Lichens in Gardens (September 2007). This article summarizes a talk presented at the PlantNetwork conference. It discusses the role of lichens in botanic gardens, and also includes general themes (aesthetics, monitoring and education) which may be applied across other cryptogam groups, for example mosses, liverworts, ferns and non-lichenized fungi.

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Bell, Peter R. "The life cycles of cryptogams." Acta Botanica Malacitana 16 (December 1, 1991): 5–16. http://dx.doi.org/10.24310/abm.v16i.9126.

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Meiosis and karyogamy are recognized as control points in the life cycle of cryptogams. The control of meiosis is evidently complex and in yeast, and by analogy in all cryptogams, involves progressive gene activation. The causes of the delay in meiosis in diplohaplontic and diplontic organisms, and the manner in which the block is removed remain to be discovered. There is accumulating evidence that cytoplasmic RNA plays an important role in meiotic division. Many features of gametogenesis are still obscure. The tendency to oogamy has provided the opportunity for the laying down of long-lived messenger RNA in the abundant cytoplasm of the female gamete. The sporophytic nature of the developing zygote can in this way be partially pre-determined. There is evidence that this is the situation in the ferns. Specific molecules (probably arabino-galacto-proteins) on the surface of the plasma membrane are likely to account both for gametic selection, and the readiness with which appropriate gametes fuse. The dikaryotic condition indicates that nuclear fusion is not inevitable following plasmogamy. The ultimate fusion of the nuclei may result from quite simple changes in the nuclear surface. Exposure of lipid, for example, would lead to fusion as a result of hydrophobic forces. Aberrations of cryptogamic life cycles are numerous. The nuclear relationships of many aberrant cycles are unknown. In general it appears that the maintenance of sporophytic growth depends upon the presence of at least two sets of chromosomes. Conversely the maintenance of gametophytic growth in cultures obtained aposporously appears to be impossible in the presence of four sets of chromosomes, or more. These results raise important problems of the effect of gene dosage on development.

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12

Chapman, B. E., D. J. Roser, and R. D. Seppelt. "13C NMR analysis of Antarctic cryptogam extracts." Antarctic Science 6, no. 3 (September 1994): 295–305. http://dx.doi.org/10.1017/s0954102094000465.

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Water soluble compounds were extracted from the dominant cryptogams of the Windmill Islands, Wilkes Land, and compared with standard polyols, sugars and amino acids using 13C nuclear magnetic resonance (NMR) spectroscopy. Previous findings for sugars and polyols from gas liquid chromatorgraphy were validated and extended. Arabitol, ribitol and mannitol were confirmed as the major soluble carbohydrate compounds in all lichen species examined. Sucrose, fructose and glucose, but no polyols were detected in two species of moss. Sorbitol was confirmed as a major component of the algae Prasiola crispa and Schizogonium murale. Mesotaenium bergrenii was confirmed to contain sucrose and glucose. No significant quantities of sugars or polyols or any other compound were found in extracts of the red snow alga Chloromonas sp.1. Amino acids were detected in the majority of cryptogam samples and were particularly abundant in the algae P. crispa and S. murale. In the latter species the total identified acids ranged from 13.5–66mg g-1 dry weight. In addition to the common amino acid components of proteins, betaine and γ-amino-butyric acid were detected, the latter being particularly abundant, being found widely in the moss, lichen and algae. Several unknown carbohydrates were characterized. Usnea sphacelata, U. antarctica and Pseudephebe minuscula contained a deoxy-hexitol, Grimmia antarctici contained resonance peaks consistent with a trisaccharide containing a sucrose moiety and Umbilicaria decussata possibly contained a glucose-arabitol dimer. 13C NMR was confirmed as a powerful tool for the characterization of low molecular weight constituents of Antarctic cryptogams.

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Casanova-Katny, Angélica, Marisol Pizarro, Marta María Caballero, Raúl Cordero, and Gustavo E. Zúiga. "Non-structural carbohydrate content in cryptogamic Antarctic species after two years of passive warming on the Fildes Peninsula." Czech Polar Reports 5, no. 1 (January 1, 2015): 88–98. http://dx.doi.org/10.5817/cpr2015-1-9.

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Cryptogamic vegetation dominates the ice-free areas of the maritime Antarctic. This particular flora grows slowly due to extreme environmental conditions, typically low temperature that may limit growth during a short summer. Over the last 50 years, the Antarctic Peninsula has undergone the highest registered temperature increases in Antarctica. As a consequence of higher temperatures, we hypothesized that lichens and mosses would produce more carbohydrates. To test this, open top chambers (OTCs) were installed in an Usnea-Himantormia community on Fildes Peninsula of King George Island. After two years, lichen thalli and plant tissues were collected to quantify non-structural carbohydrates in three lichens and two mosses. Responses contrasted between species. While non-structural carbohydrates were higher in the OTC for the lichen Himantormia lugubris, the values decreased in the moss Polytrichastrum alpinum. No marked responses to experimental warming were observed in the other three species. A significant species-specific increase in soluble sugar was observed inside the OTCs, while polyols content were not markedly different due to OTC treatment. In general, the obtained results indicate that warming does not increase carbohydrate content in all cryptogams, instead suggesting a strong species-specific response to a scenario of global warming. Further long-term warming experiments are needed to assess the responses of target species in the terrestrial Antarctic ecosystem.

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Scott, David, Neil G. Bayfield, Alexander Cernusca, and David A. Elston. "Use of a weighing lysimeter system to assess the effects of trampling on evapotranspiration of montane plant communities." Canadian Journal of Botany 80, no. 6 (June 1, 2002): 675–83. http://dx.doi.org/10.1139/b02-049.

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The aim was to investigate the impacts of trampling on water loss and partitioning in vegetation with contrasting structure and species composition. A new design of weighing lysimeter was used in glasshouse experiments to compare evapotranspiration from intact and trampled blocks of vegetation. The lysimeter system was able to detect differences between treatments after only a few hours. Evapotranspiration was recorded for six communities, representative of cryptogam - vascular plant communities found in the Cairngorm Mountains of Scotland. Vegetation blocks of Racomitrium and Vaccinium/Hylocomium heath communities had the greatest cumulative evapotranspiration and lichen heath the least over 48 h. Blocks from three of the communities (Agrostis/Festuca grassland, Calluna wet heath, and lichen heath) were used in a trampling experiment with five levels of damage. Trampling progressively destroyed the structure of the vegetation of all communities and increased the rates of water loss from the blocks. The grassland community vegetation was the most resilient. These results help to link the massive changes in vegetation structure resulting from trampling to effects on water loss and microclimate.Key words: weighing lysimeter, evapotranspiration, recreation, trampling, cryptogams, montane vegetation.

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Kapustin, D. A., D. A. Davydov, E. A. Borovichev, and A. D. Potemkin. "Cryptogamic nomenclatural notes. 1." Novosti sistematiki nizshikh rastenii 51 (2017): 281–85. http://dx.doi.org/10.31111/nsnr/2017.51.281.

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Replacement names are proposed for two later homonyms of Heteronema fusiforme Skvortsov. The combination Poterioochromonas malhamensis (E. G. Pringsh.) D. Kapustin, comb. nov. is validated. The new combination Marchantia quadrata Scop. subsp. hyperborea (R. M. Schust.) Borovich., comb. nov. is published for the Arctic subspecies of the former Preissia quadrata. The lectotype of Scapania subnimbosa Steph. is designated. The name Tritomaria quinquedentata (Huds.) H. Buch var. grandigemma Potemkin, var. nov. is validated.

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Gogorev, R. M., T. B. Golokolenova, V. A. Stepanova, E. G. Ginzburg, V. M. Kotkova, A. D. Potemkin, M. S. Ignatov, and E. I. Rozantseva. "New cryptogamic records. 1." Novosti sistematiki nizshikh rastenii 51 (2017): 286–94. http://dx.doi.org/10.31111/nsnr/2017.51.286.

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First records of diatom species for St. Petersburg, the Leningrad Region and the Volgograd Region, first records of aphyllophoroid fungi for the Volgograd Region and first records of bryophyte species for St. Petersburg, the Novgorod Region and the Republic of Mordovia are provided. The data on their localities, habitats, distribution are provided.

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Sokolova, I. V., and R. M. Gogorev. "Cryptogamic nomenclatural notes. 2." Novosti sistematiki nizshikh rastenii 52, no. 1 (2018): 205–8. http://dx.doi.org/10.31111/nsnr/2018.52.1.205.

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New combinations for Actinocyclus maccollumii, Synedra camtschatica var. finnmarchica and Synedra salina are proposed. Replacement names for the later homonyms of Amphiprora hyalina, Navicula constricta and N. grunovii are published.

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Czernyadjeva, I. V., V. M. Kotkova, I. V. Zemlyanskaya, Yu K. Novozhilov, A. V. Vlasenko, E. Yu Blagoveshchenskaya, M. L. Georgieva, et al. "New cryptogamic records. 2." Novosti sistematiki nizshikh rastenii 52, no. 1 (2018): 209–23. http://dx.doi.org/10.31111/nsnr/2018.52.1.209.

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First records of aphyllophoroid fungi for the Novgorod Region, myxomycetes for the Volgograd and Novosibirsk regions and Altai Territory, rust fungi for the Trans-Baikal Territory, lichens for the Tver and Moscow regions, lichenicolous fungus for Russia and the Republic of Dagestan, mosses for the Republic of Buryatia and data on their localities, habitats, distribution are provided.

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Sokolova, I. V., R. M. Gogorev, T. N. Otnyukova, and A. D. Potemkin. "Cryptogamic nomenclatural notes. 3." Novosti sistematiki nizshikh rastenii 52, no. 2 (2018): 534–46. http://dx.doi.org/10.31111/nsnr/2018.52.2.543.

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Replacement names for later homonyms of Pinnularia franconica and P. rabenhorstii are published. A new combination, Nyholmiella furcata (Otnyukova) Otnyukova, is published. The lectotype of Hygrolejeunea alaskana R. M. Schust. et Steere is designated.

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Afonina, O. M., V. A. Boldyrev, G. Ya Doroshina, V. E. Fedosov, G. N. Ganasevich, D. E. Himelbrant, S. S. Kholod, et al. "New cryptogamic records. 3." Novosti sistematiki nizshikh rastenii 53, no. 1 (2019): 181–97. http://dx.doi.org/10.31111/nsnr/2019.53.1.181.

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First records of lichens for the Saratov Region, of mosses for the Franz Josef Land Archipelago, the republics of Karelia and Khakassia, Stavropol, Khabarovsk and Kamchatka Territories, Khanty-Mansi Autonomous Area – Yugra, Magadan Region and first records of liverworts for the Tula Region are presented. Data on localities, habitats, distribution of recorded species are provided.

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Sokolova, I. V., and T. V. Makryi. "Cryptogamic nomenclatural notes. 4." Novosti sistematiki nizshikh rastenii 53, no. 2 (November 2019): 429–30. http://dx.doi.org/10.31111/nsnr/2019.53.2.429.

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Czernyadjeva, I. V., O. M. Afonina, D. V. Ageev, E. Z. Baisheva, T. M. Bulyonkova, N. N. Cherenkova, G. Ya Doroshina, et al. "New cryptogamic records. 4." Novosti sistematiki nizshikh rastenii 53, no. 2 (October 2019): 431–79. http://dx.doi.org/10.31111/nsnr/2019.53.2.431.

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First records of diatom species from the Barents and East-Siberian seas, of Myxomycetes for the Khanty-Mansi Autonomous Area — Yugra, Novosibirsk Region, Trans-Baikal Territory, Basidiomycetes for the Arkhangelsk, Novosibirsk, Rostov and Volgograd regions, Altai Republic, Altai Territory, lichens, calicioid and lichenicolous fungi for the Murmansk, Novgorod and Tver regions, bryophytes for the Lipezk, Voronezh and Volgograd regions, St. Petersburg, Stavropol Territory, Caucasus, Republic of Bashkortostan, Yamal and Gydan peninsulas, Trans-Baikal Territory, Magadan Region, Sakhalin Island, Republic of Uzbekistan are presented. Data on localities, habitats, distribution of recorded species are provided.

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Czernyadjeva, I. V., O. M. Afonina, E. A. Davydov, G. Ya Doroshina, O. D. Dugarova, A. S. Etylina, I. V. Filippov, et al. "New cryptogamic records. 5." Novosti sistematiki nizshikh rastenii 54, no. 1 (2020): 261–86. http://dx.doi.org/10.31111/nsnr/2020.54.1.261.

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First records of Myxomycetes for the Republic of Belarus, Basidiomycetes for the Novosibirsk and Volgograd regions, the Republic of Altai, lichens and lichenicolous fungi for the Tver Region, the republics of Altai and Tyva, bryophytes for Novaya Zemlya, the Pskov, Tula and Saratov regions, the Republic of Ingushetia, the Khanty-Mansi Autonomous Area — Yugra, the Republic of Buryatia, the New Siberian Islands Archipelago, the Peninsula and excluded lichens for the Republic of Altai are presented. Data on localities, habitats, substrates and herbarium specimens of all species are provided.

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Czernyadjeva, I. V., T. Ahti, O. N. Boldina, S. V. Chesnokov, E. A. Davydov, G. Ya Doroshina, V. E. Fedosov, et al. "New cryptogamic records. 6." Novosti sistematiki nizshikh rastenii 54, no. 2 (2020): 537–57. http://dx.doi.org/10.31111/nsnr/2020.54.2.537.

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First records of chrysophytes for the North-Western Russia and the Leningrad Region, fungi for the Pskov Region, lichens for Svalbard and the Altai Territory, bryophytes for the Far East, Arkhangelsk, Saratov, Voronezh and Sakhalin regions, the Karachayevo-Circassian Republic, Republic of North Ossetia – Alania, the Republic of Altai, the New Siberian Islands Archipelago, the Kuril Islands, the Republic of South Ossetia. The data on its localities, habitats and distribution are provided.

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WADA, M., T. KANEGAE, K. NOZUE, and S. FUKUDA. "Cryptogam phytochromes." Plant, Cell and Environment 20, no. 6 (June 1997): 685–90. http://dx.doi.org/10.1046/j.1365-3040.1997.d01-118.x.

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Péli, Evelin, Nie Lei, Tamás Pócs, Zsanett Laufer, Stefan Porembski, and Zoltán Tuba. "Ecophysiological responses of desiccation-tolerant cryptobiotic crusts." Open Life Sciences 6, no. 5 (October 1, 2011): 838–49. http://dx.doi.org/10.2478/s11535-011-0049-1.

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AbstractIn our present studies, the recovery of photosynthetic activity after rehydration was demonstrated. We measured chlorophyll fluorescence, CO2 gas exchange and the pigment composition in the previously long-term air-dried cryptogamic inselberg crusts collected from two tropical areas. The cryptobiotic crusts were collected from different localities on similar ecological and climatic conditions from extreme habitats of inselbergs (outcrops). These inselbergs are characterized by a dry microclimate and are covered by scarce soil. We found that the ecophysiological responses of both cryptogamic inselberg crusts showed an extremely high degree of desiccation-tolerance due to the fast and full recovery during rehydration. The photosynthetic activity of the cryptobiotic crusts were restored and regained within 15 and 40 min, respectively, after rehydration. Photosynthetic activity of the crusts was retained at all applied light intensities when enough water was available, however the degree of the recovery was different between the crusts. Photosynthetic pigment contents were strongly and positively correlated with water content. Our results indicated that tropical desiccation-tolerant cryptogamic crusts found on inselberg rock surfaces have CO2 fixation ability in the range of cyanobacteria and lichens, suggesting that at a global scale they can assimilate CO2 in a significant amount.

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Stewart, Nick. "Red Data Books for Cryptogamic Plants." Transactions of the Botanical Society of Edinburgh 45, no. 5 (January 1990): 473–81. http://dx.doi.org/10.1080/03746609008684984.

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Bliss, L. C., and W. G. Gold. "Vascular plant reproduction, establishment, and growth and the effects of cryptogamic crusts within a polar desert ecosystem, Devon Island, N.W.T., Canada." Canadian Journal of Botany 77, no. 5 (October 16, 1999): 623–36. http://dx.doi.org/10.1139/b99-031.

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Most of the ice-free lands within the Canadian High Arctic are classified as polar desert (44%) or semidesert (49%). Much of this desert landscape supports no more than 6-10 vascular species that provide 1-3% cover and cryptogamic organisms that occupy 0-5% cover on the soil surface. The barrenness of these lands results from a short growing season and low summer temperatures that limit plant growth and the production of viable seeds. Limited areas have a 50-80% cover of cryptogamic crust and an 8-12% cover of vascular plants. These are areas in which surfaces remain moist for considerable periods in summer from snowflush waters. Where such cryptogamic soil crusts develop, they play a central role in soil development and nitrogen fixation. The two major components of this study were (i) an examination of fundamental reproductive, establishment, and growth characteristics of polar desert plants in the field and (ii) the relationship of these characteristics to environmental conditions in areas with and without cryptogamic crusts. Summer conditions during the study ranged from unusually warm (1991; 252 degree-days) to unusually cool (1992; 123 degree-days) with two average years (1994 and 1995; 172 and 166 degree-days, respectively). Differences in reproduction and establishment among these summers included (i) higher germination ability of seeds produced in the warm summer (1991) compared with more average summers (1994 and 1995) and (ii) significant seedling occurrence only in the average summers of 1994 and 1995. Seedling densities were much higher at crusted (206 seedlings/m2) than noncrusted sites (26 seedlings/m2). In both sites, root elongation of seedlings and older plants were significantly greater than shoot elongation, yet in established plants, shoot biomass was much greater than root biomass (root/shoot ratios from 0.1 to 0.3). Reproductive attributes varied among the species examined. Saxifraga caespitosa L. produced much smaller seeds then Draba corymbosa R. Br. ex DC. and Papaver radicatum Rottb., but the largest seeds of S. caespitosa (produced in the warm summer of 1991) had much higher germination rates than any seeds of the other species. Based on an analysis of population age structures, seedling survivorship was low for all species but was especially low for S. caespitosa, despite its higher germination rates. All species were slow to germinate, with isolated seeds under ideal controlled conditions requiring a minimum of 20-30 days at a 20°C day and 15°C night. Seed germination in excised soil blocks under comparable conditions averaged 36-48 days. We believe these polar desert plant species lack special attributes to uniquely exploit the environment of these very stressful locations. Rather, they are simply adept at surviving the rigors experienced there. The same species grow much larger, flower and fruit more abundantly, and produce more viable seeds in high arctic environments more favorable than polar deserts, such as lowland polar oases (e.g., Truelove Lowland, Devon Island, Canada). Within the harsh polar desert landscape of the High Arctic, the presence of a cryptogamic crust that retains surface moisture, prevents soil churning, and includes nitrogen-fixing organisms provides a more favorable habitat for plant reproduction, establishment, and growth.Key words: High Arctic, plant reproduction, plant establishment, plant growth, cryptogamic crust, polar desert, Devon Island.

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29

Reynaud, Pierre A., and Thomas A. Lumpkin. "Microalgae of the Lanzhou (China) Cryptogamic Crust." Arid Soil Research and Rehabilitation 2, no. 3 (January 1988): 145–55. http://dx.doi.org/10.1080/15324988809381169.

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30

Suetsugu, Noriyuki, and Masamitsu Wada. "Cryptogam blue-light photoreceptors." Current Opinion in Plant Biology 6, no. 1 (February 2003): 91–96. http://dx.doi.org/10.1016/s1369526602000067.

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31

Hylander, Kristoffer, and Bengt Gunnar Jonsson. "The conservation ecology of cryptogams." Biological Conservation 135, no. 3 (March 2007): 311–14. http://dx.doi.org/10.1016/j.biocon.2006.10.019.

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32

Carmin, Jos. "Palestinian plants, their biology, diseases and cryptogamic inhabitants." Acta Societatis Botanicorum Poloniae 10, no. 2 (2017): 297–306. http://dx.doi.org/10.5586/asbp.1933.008.

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Carmin, Jos. "Palestinian plants, their biology, diseases and cryptogamic inhabitants." Acta Societatis Botanicorum Poloniae 13, no. 2 (2017): 93–103. http://dx.doi.org/10.5586/asbp.1936.006.

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34

Watling, Roy. "Dawyck Botanic Garden: the Heron Wood cryptogamic project." Botanical Journal of Scotland 56, no. 2 (January 2004): 109–18. http://dx.doi.org/10.1080/03746600408685073.

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35

Lenhart, Katharina, Bettina Weber, Wolfgang Elbert, Jörg Steinkamp, Tim Clough, Paul Crutzen, Ulrich Pöschl, and Frank Keppler. "Nitrous oxide and methane emissions from cryptogamic covers." Global Change Biology 21, no. 10 (July 7, 2015): 3889–900. http://dx.doi.org/10.1111/gcb.12995.

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36

Hallingbäck, Tomas. "Working with Swedish cryptogam conservation." Biological Conservation 135, no. 3 (March 2007): 334–40. http://dx.doi.org/10.1016/j.biocon.2006.10.020.

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37

Saunders, Gary W., Cody M. Brooks, and Sue Scott. "Preliminary DNA Barcode Report on the Marine Red Algae (Rhodophyta) from the British Overseas Territory of Tristan da Cunha." Cryptogamie, Algologie 40, no. 10 (November 22, 2019): 105. http://dx.doi.org/10.5252/cryptogamie-algologie2019v40a10.

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Liu, Bing, David M. Williams, Saúl Blanco, Zhu-Xiang Liu, and Dan Liu. "Three New Species of Ulnaria (Kützing) Compère (Bacillariophyta) from China, with Reference to the Fine Structure of Their Valvocopula." Cryptogamie, Algologie 40, no. 11 (December 11, 2019): 119. http://dx.doi.org/10.5252/cryptogamie-algologie2019v40a11.

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Soler, Noemi Salvador, Jordi Rull Lluch, and Amelia Gómez Garreta. "Intraindividual Variation in Nuclear DNA Content in Durvillaea Antarctica (Chamisso) Hariot, Macrocystis pyrifera (Linnaeus) C. Agardh and Lessonia spicata (Suhr) Santelices (Phaeophyceae)." Cryptogamie, Algologie 40, no. 1 (March 6, 2019): 5. http://dx.doi.org/10.5252/cryptogamie-algologie2019v40a2.

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Manghisi, Antonio, Ramzi Miladi, Simona Armeli Minicante, Giuseppa Genovese, Line Le Gall, Slim Abdelkafi, Gary W. Saunders, and Marina Morabito. "DNA Barcoding Sheds Light on Novel Records in the Tunisian Red Algal Flora." Cryptogamie, Algologie 40, no. 1 (April 3, 2019): 5. http://dx.doi.org/10.5252/cryptogamie-algologie2019v40a3.

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Nemcova, Yvonne, and Dmitry Kapustin. "Mallomonas teres, sp. nov. (Chrysophyceae), Simultaneously Revealed in Two Distant European Peat-Bog Regions." Cryptogamie, Algologie 40, no. 1 (May 7, 2019): 35. http://dx.doi.org/10.5252/cryptogamie-algologie2019v40a4.

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Liu, Qi, Anton Glushchenko, Maxim Kulikovskiy, Yevhen Maltsev, and John Patrick Kociolek. "New Hannaea Patrick (Fragilariaceae, Bacillariophyta) Species from Asia, with Comments on the Biogeography of the Genus." Cryptogamie, Algologie 40, no. 5 (August 13, 2019): 41. http://dx.doi.org/10.5252/cryptogamie-algologie2019v40a5.

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Núñez-Resendiz, María Luisa, Kurt M. Dreckmann, Abel Sentíes, and Hilda P. León-Tejera. "Meristotheca spinella Núñez-Resendiz, Dreckmann & Sentíes, sp. nov. (Solieriaceae, Rhodophyta) a New Cylindrical Species from the Southwestern Gulf of Mexico." Cryptogamie, Algologie 40, no. 6 (August 28, 2019): 63. http://dx.doi.org/10.5252/cryptogamie-algologie2019v40a6.

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Ryan, Will H., Sabrina Heiser, Michelle D. Curtis, Charles D. Amsler, Till Bayer, Guido Bonthond, Gaoge Wang, Florian Weinberger, and Stacy A. Krueger-Hadfield. "The Use of Photographic Color Information for High-Throughput Phenotyping of Pigment Composition in Agarophyton vermiculophyllum (Ohmi) Gurgel, J.N.Norris & Fredericq." Cryptogamie, Algologie 40, no. 7 (September 16, 2019): 73. http://dx.doi.org/10.5252/cryptogamie-algologie2019v40a7.

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Masucci, Giovanni Diego, Ike Olivotto, and Mario Giordano. "Chemical Communication in the Symbiotic Interaction between the anemone Exaiptasia diaphana (ex Aiptasia pallida) Rapp and the Dinoflagellate Symbiodinium spp." Cryptogamie, Algologie 40, no. 8 (September 24, 2019): 85. http://dx.doi.org/10.5252/cryptogamie-algologie2019v40a8.

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Simić, Snežana B., Aleksandra B. Mitrović, and Nevena B. Đorđević. "New Data on the Morphology, Reproduction and Distribution of a Freshwater Brown Alga Porterinema fluviatile (Porter) Waern (Phaeophyceae)." Cryptogamie, Algologie 40, no. 9 (October 18, 2019): 95. http://dx.doi.org/10.5252/cryptogamie-algologie2019v40a9.

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Le Cohu, René, Julien Marquié, and Loïc Tudesque. "Adlafia diahotensis, sp. nov. (Bacillariophyceae), a New Species from New Caledonia." Cryptogamie, Algologie 41, no. 1 (February 10, 2020): 1. http://dx.doi.org/10.5252/cryptogamie-algologie2020v41a1.

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Roy, Surajit, Cheran Radhakrishnan, Jonathan C. Taylor, Maxim S. Kulikovskiy, and Balasubramanian Karthick. "Encyonema keshrii, sp. nov.: A New Diatom Species (Cymbellales, Bacillariophyceae) from the Indian Subcontinent." Cryptogamie, Algologie 41, no. 2 (February 19, 2020): 7. http://dx.doi.org/10.5252/cryptogamie-algologie2020v41a2.

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Huisman, John M., and Heroen Verbruggen. "Pseudoderbesia Eckloniae, sp. nov. (Bryopsidaceae, Ulvophyceae) from Western Australia." Cryptogamie, Algologie 41, no. 3 (March 4, 2020): 19. http://dx.doi.org/10.5252/cryptogamie-algologie2020v41a3.

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Gómez, Fernando, Lucie Courcot, and Luis Felipe Artigas. "Observations of the Diatoms Sceptronema orientale Takano and Tabularia parva (Kützing) D.M.Williams & Round on the Exoskeleton of Copepods in the English Channel and Coastal Celtic Seas." Cryptogamie, Algologie 41, no. 4 (March 20, 2020): 25. http://dx.doi.org/10.5252/cryptogamie-algologie2020v41a4.

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Journal articles on the topic 'Cryptogamia'

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