Academic literature on the topic 'Gymnospermae'

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Journal articles on the topic "Gymnospermae"

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Adhatirana, Rizkia, Nina Ratna Djuita, Sulistijorini Sulistijorini, and Taufikurrahman Nasution. "Paku Epifit pada Gymnospermae di Kebun Raya Cibodas." Jurnal Sumberdaya Hayati 7, no. 2 (December 24, 2021): 49–56. http://dx.doi.org/10.29244/jsdh.7.2.49-56.

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Epiphytic ferns can be found in host trees from the Angiosperm and Gymnosperm groups. Epiphytic ferns in Angiosperm plants host have been widely studied, but there is little known for Gymnosperm plants host. The aim of this study was to identify the species of epiphytic ferns in the Gymnosperm plants host at Cibodas Botanical Garden and to analyze the diversity of epiphytic ferns based on microclimate conditions and the surface texture of Gymnosperms plants host. Epiphytic ferns diversity data was obtained using purposive random sampling method. Factors that influence the occupancy of ferns are analyzed using Principal Component Analysis. Epiphytic ferns in Gymnosperm host at Cibodas Botanical Garden were identified as 18 species including 7 family. The most dominant species of epiphytic fern is Davallia denticulata (59.45%). Diversity of epiphytic fern on Gymnosperm at Cibodas Botanical Garden is moderate (H’ = 1.81).
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Viracheva, Ljubov Leonidovna, and Ljubov Andreevna Ivanova. "Plants of the Gymnosperms (Gymnospermae) in the Greenhouse of the Polar-Alpine Botanical Garden." HORTUS BOTANICUS 16, no. 16 (January 2021): 168–77. http://dx.doi.org/10.15393/j4.art.2021.6906.

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Yatskievych, George, Clodomiro Marticorena, and Roberto Rodriguez. "Flora de Chile. Volume 1. Pteridophyta: Gymnospermae." American Fern Journal 86, no. 2 (April 1996): 67. http://dx.doi.org/10.2307/1547373.

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Zijlstra, Gea, and Han Cittert. "(1446) Proposal to conserve the name Araucarites C. Presl (Fossil Gymnospermae, Coniferales, Araucariaceae ) against Araucarites Endl. (Fossil Gymnospermae, Coniferales )." TAXON 49, no. 2 (May 2000): 279–80. http://dx.doi.org/10.2307/1223841.

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Nuwa, Rofinus Bu'u. "Studi Perbandingan Transpirasi antar Pohon di Hutan Kota Malabar (Penelitian Pendahuluan untuk Solusi Pengelolaan Lahan Kering)." Buletin Loupe 15, no. 02 (February 5, 2020): 51. http://dx.doi.org/10.51967/buletinloupe.v15i02.42.

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Kekeringan merupakan salah satu masalah serius yang sering muncul ketika musim kemarau tiba dan berkepanjangan. Dari aspek hidrometeorologi kekeringan timbul dan disebabkan oleh berkurangnya curah hujan selama periode tertentu. Tujuan dari penelitian ini adalah untuk mengetahui jenis pohon dengan transpirasi paling besar berdasarkan karakteristik daun dan hasil total transpirasi. Hasil penelitian ini menunjukkan pohon gymnospermae yang daun paling lebar yaitu daun pohon melinjo 1 yaitu lebar 5,3 cm dan jenis pohon angiospermae yang daunnya paling lebar yaitu daun pohon ketapang 2 yaitu lebar 18,4 cm. Jenis pohon gymnospermae yang daun paling tebal yaitu daun pohon cemara norflok 1 dengan tebal daunya yaitu 0,049 mm, sedangkan jenis angiospermae pohon dengan daun paling tebal yaitu daun pohon ketapang 3 dengan tebal daunnya itu 0,015 mm. Jumlah total daun paling banyak yaitu jenis glodokan sebesar 7809. Pada jenis pohon gymnospermae rata-rata jumlah uap air yang dihasilkan paling banyak adalah pohon Melinjo dengan jumlah rata-rata 1.428,07 ml. Sedangkan pada jenis pohon angiospermae, pohon yang paling besar menghasilkan uap air yaitu Ketapang dengan nilai rata-rata 9.607,6 ml. Dari hasil pengamatan, peneliti menyimpulkan jenis pohon angiospermae yang paling banyak menghasilkan uap air yaitu jenis pohon Ketapang, karena dilihat dari panjang daun, lebar daun dan tipisnya daun sehingga pohon ketapang yang paling banyak menghasilkan uap air.
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Yatskievych, George, Kunio Iwatsuki, Takasi Yamazaki, David E. Boufford, and Hideaki Ohba. "Flora of Japan. Volume I. Pteridophyta and Gymnospermae." American Fern Journal 86, no. 3 (July 1996): 104. http://dx.doi.org/10.2307/1547646.

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Gilli, Alexander. "Beiträge zur Flora Afghanistans I. Pteridophyta und Gymnospermae." Repertorium novarum specierum regni vegetabilis 61, no. 1 (April 20, 2008): 86–92. http://dx.doi.org/10.1002/fedr.19580610104.

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Рубцов, А. Ф. "Деякі аспекти інтродукції Gymnospermae на півдні степової зони України." Вісник Київського університету імені Тараса Шевченка. Інтродукція та збереження рослинного різноманіття, Вип. 1 (1999): 86–87.

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Moran, Robbin C. "Flora of Taiwan, Second Edition, Volume 1. Pteridophyta, Gymnospermae." American Fern Journal 85, no. 2 (April 1995): 66. http://dx.doi.org/10.2307/1547472.

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Hartono, Adi, Miza Nina Adlini, Yusran Efendi Ritonga, Muhammad Iqbal H. Tambunan, Martua Syahriadi Nasution, and Jumiah Jumiah. "IDENTIFIKASI TUMBUHAN TINGKAT TINGGI (PHANEROGAMAE) DI KAMPUS II UINSU." Jurnal Biolokus 3, no. 2 (December 31, 2020): 305. http://dx.doi.org/10.30821/biolokus.v3i2.755.

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Tumbuhan tingkat tinggi (Phanerogamae) merupakan tumbuhan berbiji yang berkembang biak secara seksual. Tumbuhan ini memiliki persebaran yang cukup luas dan lazim ditemukan di berbagai daerah. Kampus II UINSU merupakan kampus yang memiliki keanekaragaman tumbuhan tingkat tinggi yang cukup bervariasi. Oleh karena itu, penelitian ini bertujuan untuk mengidentifikasi tumbuhan tingkat tinggi (Phanerogamae) yang terdapat di Kampus II UINSU Metodologi penelitian yang digunakan ialah metode survey eksploratif dan deskriptif, dengan melakukan pendataan tumbuhan serta mengamati morfologi dan deskripsi tumbuhan tersebut. sampel dikoleksi dalam bentuk segar dan diidentifikasi di laboratorium Tadris Biologi FITK UINSU. Identifikasi tumbuhan menggunakan prosedur pendataan ciri morfologi tumbuhan dan kunci identifikasi yang bersumber dari buku Tjitrosoepomo (2010). Hasil penelitian menunjukkan bahwa terdapat dua sub divisi tumbuhan, yaitu sub divisi Angiospermae dan Gymnospermae. Pada sub divisi Angiospermae ditemukan 6 ordo dengan 9 famili pada kelas Monocotyledonae dan 25 ordo dengan 32 famili pada kelas Dicotyledonae. Sedangkan, pada sub divisi Gymnospermae ditemukan 1 kelas dengan 2 ordo tumbuhan tingkat tinggi (Phanerogamae) yang ditemukan di Kampus II UINSU.
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Dissertations / Theses on the topic "Gymnospermae"

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Lopez-Gallego, Cristina. "Effects of habitat degradation on the evolutionary dynamics of populations in a rainforest cycad (Gymnospermae)." ScholarWorks@UNO, 2007. http://scholarworks.uno.edu/td/555.

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In addition to habitat loss and fragmentation, habitat degradation can have important consequences for biodiversity and population persistence, including effects on ecological and genetic processes beyond decreased demographic viability and the loss of genetic variation. Particularly interesting is the potential for evolutionary changes and adaptation to degraded habitats, that can affect population viability even in the short-term. Here, I explore how environmental changes after habitat degradation affect the evolutionary dynamics of populations of the rainforest cycad Zamia fairchildiana, specifically how habitat degradation affects gene dispersal, inbreeding, directional selection, and genotype-by-environment interactions, and the potential for genetic differentiation between populations. Colonies of Z. fairchildiana showed little genetic differentiation in neutral molecular markers across study sites, thus can be considered as subpopulations. Subpopulations in the disturbed habitat are experiencing different environmental conditions when compared to subpopulation in their native habitat. Disturbed-habitat subpopulations showed a faster life-history. This faster life history is associated with a weaker spatial genetic structure and higher levels of inbreeding in the disturbed-habitat subpopulations. In addition, higher light availability in the disturbed habitat seems to be a major agent of selection on traits like leaf production that have the potential to respond to selection in these subpopulations. Different traits were under selection in the native-habitat subpopulations, suggesting the potential for genetic differentiation between native and disturbed-habitat subpopulations. Genotype by environment interactions in seed germination and seedling survival, in response to light and water availability, further suggested that subpopulations can adaptively diverge between habitats, but the relative role of genetic and environmental factors, particularly maternal effects, on the magnitude and rate of genetic differentiation between subpopulations remains to be evaluated. These results suggest that habitat degradation can have important consequences for the evolutionary dynamics of populations of this cycad, not necessarily typical of habitat loss and fragmentation. This study identified factors and processes important for population persistence in degraded habitats, but population responses to habitat degradation are complex. Thus further studies and long-term experiments are required for better understanding the effects of habitat degradation on population viability.
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Seridi-Benkaddour, Ratiba. "Etude ultrastructurale et biochimique de la secretion de la goutte micropylaire par le nucelle au moment de la pollinisation chez quatre gymnospermes : thuya orientalis, cupressacees, cephalotaxus drupacea, cephalotaxacees, taxus baccata, taxacees." Paris 7, 1988. http://www.theses.fr/1988PA077152.

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Rendon, Paula Andrea Sucerquia. "Gimnospermas eocretáceas da Formação Crato, bacia do Araripe, Nordeste do Brasil." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/44/44139/tde-22082007-105023/.

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A Formação Crato, localizada na bacia do Araripe, Nordeste do Brasil, contém um dos registros fossíferos vegetais mais importantes do Cretáceo Inferior. Estes fósseis apresentam excelente estado de preservação, no geral, com pouca fragmentação, órgãos em conexão e estruturas epidérmicas e anatômicas delicadamente substituídas por óxidos de ferro. Como acontecia globalmente, as gimnospermas eram o grupo vegetal dominante na paleoflora eocretácea da Formação Crato, ocorrendo na forma de Bennettitales, Coniferales e Gnetales. As Bennettitales foram um componente aparentemente raro, estando representado pelas espécies Otozamites sp. e Zamites sp. Dentre as Coniferales, encontram-se as famílias Araucariaceae e Cheirolepidiaceae, as Araucariaceae registradas nas espécies Araucarites vulcanoi Duarte e Araucarites kunzmanni sp. nov.; as Cheirolepidiaceae, o grupo mais diverso, estão representadas pelas espécies Brachyphyllum obesum Heer, Brachyphyllum ponsi sp. nov., Brachyphyllum araripense sp. nov., Tomaxellia aff. T. biforme Archangelsky, Toxamellia aff. T. degiustoi e Pseudofrenelopsis sp. As Gnetales ocorrem na forma das espécies Limaephyton cratense gen. et sp. nov., Limaephyton duartei gen. et sp. nov. e Limaephytophyllum mohrium gen. et sp. nov. Características morfológicas, epidérmicas e anatômicas presentes nos macrofitofósseis da Formação Crato, evidenciam adaptações a um ambiente de baixa umidade. Esta flora se desenvolveu dentro da Região Equatorial, numa área intracontinental sob condições climáticas áridas e semi-áridas.
Crato Formation, located in the Araripe Basin, Northeastern Brazil, bears one of the most important Lower Cretaceous fóssil plant Record. The fossils have an excellent preservation, usually low fragmentated, with attached organs and epidermic and anatomic features delicatedly replaced by iron oxides. As it happens worldwide, gymnosperms were the dominant group in the Lower Cretaceous Crato Formation paleoflora, existing as Bennettitales, Coniferales e Gnetales. Bennettitales were an apparently scarce component, represented by the species Otozamites sp. and Zamites sp. Between the Coniferales, are the families Araucariaceae and Cheirolepidiaceae, the Araucariaceae recorded by the species Araucarites vulcanoi Duarte and Araucarites kunzmanni sp. nov.; Cheirolepidiaceae, the most diverse group, is registered by species Brachyphyllum obesum Heer, Brachyphyllum ponsi sp. nov., Brachyphyllum araripense sp. nov., Tomaxellia aff. T. biforme Archangelsky, Toxamellia aff. T. degiustoi e Pseudofrenelopsis sp. As Gnetales are documented by the species Limaephyton duartei gen. et sp. nov. and Limaephytophyllum mohrium gen. et sp. nov. Morphologic, epidermic and anatomic features founded in the plant fossils from Crato Formation, evidence low moisture environment adaptations. That flora was developed in the Equatorial Region, in an intracontinental area with arid to semi-arid climatic conditions.
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Droin-Josserand, Albane. "Etude expérimentale des mouvements de l'eau dans l'aubier de pin sylvestre dans le domaine hygroscopique : modélisation et simulation." Saint-Etienne, 1988. http://www.theses.fr/1988STET4009.

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Une étude expérimentale des transferts d'humidité dans l'aubier de pin sylvestre dans le domaine hygroscopique a été effectuée. L'étude de l'influence de plusieurs paramètres sur les transferts (direction de diffusion, teneur en eau du bois, température, dimensions de l'échantillon) a permis d'obtenir les données nécessaires à l'élaboration d'un modèle mathématique. Ce modèle permet de simuler les cinétiques de transfert d'humidité dans le bois (aubier de pin mais aussi d'autres espèces), à humidité relative constante ou variant au cours du temps. Le modèle étant tridimensionnel, on peut connaitre les teneurs en eau à chaque instant et en chaque point de l'échantillon. Ces renseignements sont nécessaires pour prévoir une éventuelle biodégradation par les champignons
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Efransjah, M. "Contribution à l'étude de la préservation du bois : Amélioration de l'imprégnabilité de l'épicéa (picéa SP.) par un pré-traitement bactérien et caractérisation du comportement du bois par l'utilisation des ultrasons." Nancy 1, 1988. http://www.theses.fr/1988NAN10032.

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On a sélectionné trois souches appartenant aux germes bacillus et pseudomonas, produisant les enzymes susceptibles de détruire les composés pecto-cellulosiques du torus des ponctuations. On a évalué l'augmentation de la perméabilité par la mesure de la rétention du PCP, de CUSO::(4) et de CCA, on a vérifié l'activité des procaryotes par meb. On a constaté une action positive des germes aussi bien en condition stérile qu'en condition semi-industrielle. L'application d'une technique ultrasonore a montré l'absence de modification significative des propriétés mécaniques selon l'axe longitudinal. On a observé cependant une réduction de 30% du module de rigidité selon les axes radial et tangentiel
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Ibnusantosa, Gatot. "Contribution à l'étude de l'imprégnation de plaquettes de bois par des solutions aqueuses de soude." Grenoble INPG, 1988. http://www.theses.fr/1988INPG0063.

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On a mesure les gonflements directionnels et la masse volumique de plaquettes de hetre, peuplier et epicea de diverses epaisseurs, saturees par des solutions de soude. Les gonflements observes sont compris entre deux valeurs limites et sont d'autant plus importants que les plaquettes sont moins epaisses. Seul le gonflement tangentiel est affecte par la presence de soude en solution. Les masses volumiques mesurees indiquent qu'il n'y a pas additivite des volumes de la matiere vegetale et de la solution impregnante et que la masse volumique est d'autant plus faible que le gonflement volumique est plus important
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Buratti, Lionel. "Etude des acides diterpeniques des aiguilles du pin sylvestre, pinus silvestris l. : incidences sur le comportement alimentaire des larves de diprion pini l. (hymenoptere : diprionidae)." Orléans, 1988. http://www.theses.fr/1988ORLE2019.

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Fink, Daniel [Verfasser]. "Phloembeladung und Zuckertransport in ausgewählten Gymnospermen / Daniel Fink." Wuppertal : Universitätsbibliothek Wuppertal, 2019. http://d-nb.info/1196220921/34.

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Kurmann, Marie Helena. "Pollen wall ultrastructure and development in selected gymnosperms /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487322984316368.

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Lelu, Marie-Anne. "Embryogenese somatique chez picea abies l. Karst. A partir de cotyledons de jeunes plantes." Paris 6, 1987. http://www.theses.fr/1987PA066485.

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Les travaux relatant l'embryogenese somatique chez les gymnospermes sont encore recents et n'ont ete realises qu'a partir de materiel tres juvenile. C'est ce genre d'explant que nous avons utilise comme temoin pour caracteriser et visualiser l'embryogenese somatique. Nous avons par la suite obtenu ce phenomene a partir de cotyledons de jeunes plantes agees de 3 a 7 jours apres germination, places directement en conditions de callogenese. Cependant, le taux de cals embryogenes est ameliore quand les cotyledons subissent un traitement caulogene d'une semaine prealablement; dans nos meilleures conditions experimentales 22,7% de cotyledons forment des cals embryogenes. Ceux-ci, places sur un milieu de multiplication, doivent etre subdivises et repiques tous les 10 a 12 jours afin de favoriser leur proliferation
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Books on the topic "Gymnospermae"

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Dijkstra, S. J. Gymnospermae (Gingophyta et Coniferae). Leiden: Backhuys Publishers, 1999.

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Andreata, Regina Helena P. Chaves para determinar famílias de: pteridophyta, gymnospermae, angiospermae. Rio de Janeiro: Editora Universitária Santa Ursula, 1994.

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Vásquez, Rodolfo. Plantas de la Amazonía peruana: Clave para identificar las familias de Gymnospermae y Angiospermae. Trujillo, Perú: Museo de Historia Natural, 2004.

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Vásquez, Rodolfo. Plantas de la Amazonía peruana: Clave para identificar las familias de Gymnospermae y Angiospermae. Trujillo, Perú: Museo de Historia Natural, 2004.

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Mohlenbrock, Robert H. Filicineae, Gymnospermae, and other monocots, excluding Cyperaceae: Ferns, conifers, and other monocots, excluding sedges. Carbondale, IL: Southern Illinois University Press, 2005.

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Filicineae, Gymnospermae, and other monocots, excluding Cyperaceae: Ferns, conifers, and other monocots, excluding sedges. Carbondale: Southern Illinois University Press, 2005.

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S, Daniels Gilbert, and Warda Hans-Dieter, eds. Manual of cultivated conifers. 2nd ed. Portland, Or: Timber Press, 1985.

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Castroviejo, Santiago, and Ine s. A. lvarez Ferna ndez. Claves de Flora Iberica: Plantas vasculares de la Peni nsula Ibe rica e Islas Baleares : Pteridophyta, gymnospermae, angiospermae (lauraceae-euphorbiaceae). Madrid: Real jardi n bota nico, 2001.

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Biswas, Chhaya, and B. M. Johri. The Gymnosperms. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-662-13164-0.

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Biswas, Chhaya. The gymnosperms. Berlin: Springer, 1997.

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Book chapters on the topic "Gymnospermae"

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Hanelt, Peter. "Gymnospermae." In Mansfeld’s Encyclopedia of Agricultural and Horticultural Crops, 61–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-540-30442-5_8.

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Gemeinholzer, Birgit. "Nacktsamer (Gymnospermae)." In Systematik der Pflanzen kompakt, 135–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-55234-6_6.

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Spencer, Kenneth A. "Division PINOPHYTA (Gymnospermae)." In Host Specialization in the World Agromyzidae (Diptera), 15–16. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-1874-0_3.

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Held, Andreas, and Manuela Held. "Gymnospermen." In Diversität 2, 5–7. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-55090-8_2.

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Stevenson, Dennis Wm. "Gymnosperms." In Annual Plant Reviews Volume 45, 141–61. Chichester, West Sussex, UK: John Wiley & Sons, Ltd., 2012. http://dx.doi.org/10.1002/9781118305881.ch5.

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Evert, Ray F., and Susan E. Eichhorn. "Gymnosperms." In Raven Biology of Plants, 430–56. New York: Macmillan Learning, 2013. http://dx.doi.org/10.1007/978-1-319-15626-8_19.

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Dehgan, Bijan. "Gymnosperms." In Garden Plants Taxonomy, 57–171. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11561-5_3.

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Owfi, Reza E. "Spermatophytes: Gymnosperms." In Natural Products and Botanical Medicines of Iran, 199–208. First edition. | Boca Raton : CRC Press, 2020. | Series: Natural products chemistry of global plants: CRC Press, 2020. http://dx.doi.org/10.1201/9781003008996-6.

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Rohr, R. "Haploids (Gymnosperms)." In Cell and Tissue Culture in Forestry, 230–46. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-4484-8_12.

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Biswas, Chhaya, and B. M. Johri. "Introduction." In The Gymnosperms, 1–11. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-662-13164-0_1.

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Conference papers on the topic "Gymnospermae"

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"G.R.E.E.N. - An Expert System to identify Gymnosperms." In 6th International Conference on Enterprise Information Systems. SciTePress - Science and and Technology Publications, 2004. http://dx.doi.org/10.5220/0002642702160221.

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Zavialova, N., and N. Nosova. "UNUSUAL IN SITU FINDS OF GYMNOSPERM POLLEN." In Актуальные проблемы современной палинологии. Москва: Общество с ограниченной ответственностью "Издательство ГЕОС", 2022. http://dx.doi.org/10.54896/9785891188532_2022_29.

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Iakovlev, Alexey, Anastasia Durova, Sergey Kascheev, Aleksandr Grishkanich, Andrey Mak, and Julia Ruzankina. "Increasing the quality and germination gymnosperms by photonics methods." In SPIE BiOS, edited by E. Duco Jansen and Hope T. Beier. SPIE, 2017. http://dx.doi.org/10.1117/12.2253411.

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Labandeira, Conrad C. "GYMNOSPERMS, ANGIOSPERMS AND INSECT POLLINATORS TRANSITING THE ALBIAN-APTIAN GAP." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-317578.

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Huang, Yu-Yuan, Yan-Hua Han, Li-Jun Wei, and Jia-Zhuo Wang. "Comparative Studies of Tracheary Element Structure of Some Gymnosperms with Angiosperms." In CYCAD 2011. The New York Botanical Garden Press, 2018. http://dx.doi.org/10.21135/893275389.002.

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6

Kadyrova, L. R., and N. B. Prokhorenko. "P.N. Krylov's collection in Kazan Universities Herbarium." In Problems of studying the vegetation cover of Siberia. TSU Press, 2020. http://dx.doi.org/10.17223/978-5-94621-927-3-2020-15.

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The article describes the herbarium collection by P.N. Krylov for the period from 1876 to 1884. This collection includes plants from the former Perm, Vyatka and Kazan provinces territory and localized in the herbarium of Kazan Federal University KAZ. The collection contains 3689 herbarium leaves and totals 925 species of vascular plants (6 species of plauniform, 7 species of horsetail, 24 species of fern-shaped, 3 species of gymnosperms and 885 species of angiosperms). There are species among them with conservation status. Now we are working to create an electronic database based on this and other collections of KAZ herbarium.
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Frolov, А. О., and I. V. Enushchenko. "The first discovery leaves of angiosperms in the Middle Jurassic deposits in Eastern Siberia." In Problems of studying the vegetation cover of Siberia. TSU Press, 2020. http://dx.doi.org/10.17223/978-5-94621-927-3-2020-42.

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There is fossil of linear whole-marginal leaves with parallel venation in the Middle Jurassic (Aalenian) sediments of the Irkutsk Coal Basin, were found. During the study of cuticle preparations it was found that leaves were steam-bearing, has anastomoses between veins, anomocytic stomata and the diamond-shaped main cells of the epidermis. Such a combination of characters is widespread in modern monocotyledonous and is absent among fossil as well as modern sporeals and gymnosperms plants. We have every reason to believe that we have found unique structures of leaves characteristic of monocotyledons. This find is the oldest among the herbaceous angiosperms of the Jurassic period, such as Yuraherba and Yukhaniya, and the first found in Siberia.
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Sheldon, Nathan D., and Selena Y. Smith. "EVOLUTIONARY ISOTOPE ECOLOGY OF MODERN GYMNOSPERMS WITH EXTENSIVE FOSSIL RECORDS CONSTRAINS PALEOCLIMATIC AND PALEOENVIRONMENTAL APPLICATIONS." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-308046.

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Cui, Yan-Qiu, Xin-Hong Cui, Yi Zhu, Qun Zhang, and Peng Nan. "Chemical Composition and Antimicrobial Activity of Volatile Oil of Six Gymnosperm Species Leaves from Shanghai." In 2008 2nd International Conference on Bioinformatics and Biomedical Engineering (ICBBE '08). IEEE, 2008. http://dx.doi.org/10.1109/icbbe.2008.303.

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Chetia, Rimpy, Runcie Paul Mathews, and Prakash K. Singh. "Evidence of Gymnosperm-Dominant Forests in the Early Paleocene of Western India Based on Lipid Biomarkers." In 30th International Meeting on Organic Geochemistry (IMOG 2021). European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202134356.

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