The family Polytrichaceae Schwägr in Yakutia
https://doi.org/10.25587/SVFU.2020.75.55407
Abstract
At the present time a revision of the Polytrichaceae family in Russia including 40 species from 8 genera has been completed using the methods of DNA sequences studying. Special attention was paid to 4 genera (Oligotrichum, Lyellia, Polytrichum, Polytrichastrum), which helped in solving problems with the differentiation of species whose morphological features were overlapped. Samples from the border regions of Russia including poorly studied regions such as Yakutia, Transbaikalia, Primorye and the Caucasus (Herbariums LE, MHA, H, MW, SASY, NSK, etc.) were studied. In general, all the above mentioned allowed to re-examine the systematics of the family, to clarify the morphological characteristics of species, their distribution and environmental confinement. The flora of the mosses of Yakutia currently includes 539 species and varieties from 174 genera and 52 families, 19 orders and 6 classes of BRYOPHYTA division. The Polytrichaceae family is among the leading families in Yakutia, constituting the core of the taiga flora and it has 18 species from 6 genera: Lyellia (1 species), Oligotrichum (2), Psilopilum (2), Polytrichum (8), Pogonatum (2), Polytrichastrum (3), two species of them - Lyellia aspera and Oligotrichum falcatum are included in the Red Book of the Republic of Sakha (Yakutia) (2017). Representatives of the family grow mostly in forests, swamps and tundra. The article provides a brief overview of the Polytrichaceae family species in Yakutia with their distribution in floristic areas, frequency of occurrence and environmental confinement.
About the Author
E. I. Ivanova
Federal State Budgetary Institution for Science IBPC SD RAS
Russian Federation
Russian Federation
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For citations:
Ivanova E.I. The family Polytrichaceae Schwägr in Yakutia. Vestnik of North-Eastern Federal University. 2020;(1):17-26. (In Russ.) https://doi.org/10.25587/SVFU.2020.75.55407
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