The antiquity of the origin of such group as pteridophytes, complex biology of the development and reproduction deter- mine their low competitiveness in the formation of current phytocenoses. Weak resistance to anthropogenic and technogenic loadings allows us to classify pteridophytes as valuable objects of environmental monitoring in the diagnosis of the state of regional forest ecosystem. Interesting in this respect are the rarest species, included in the Red Book, the conservation and rational use of which is most relevant. The results of the analysis of the list of rare and protected pteridophytes of the Baikal Siberia, their biomorphological, ecological and horologic characteristics are given in the study. Seventeen species of pteridophytes included into the Red Book of the Russian Federation and the regions of the Baikal Siberia (Irkutsk Region, the Republic of Buryatia, Transbaikalian Region) have been specified. It is recom- mended to include 11 pteridophytes into the list of protected plants at the federal and regional levels: e.g. Aleuritopteris shensesiensis Chingin FI. Tsinling., Asplenium nessi Christ,A. tenuicaule Hayata, A. ruprechtii Sa. Kurata in Namegata et Kurata, A. septentrionale (L.) Hoff., Thelypteris limbosperma (Bellardi ex All.) H.P. Fuchs., Woodsia acuminata (Fomin) Sipl., W. asiatica Schmakov et Kiselev, W. asplenioides Rupr., W. pseudopolystichoides (Fomin) Kiselev et Schmakov, W. subcordata Turcz. Some groups of criteria are capable of diagnosing high vulnerability of pteridophytes with- in the Baikal Siberia. The groups of criteria diagnosing high vulnerability of pteridophyte within the Baikal Siberia are of-fered: biomorphological features expressed in evergreen state; monosporicity; viviparity and epiphytism; as well as belonging to chamaephyte group; ecologic-cenotic occur- rence within aquatic and wetland ecologic biocenoses and thermal spring shoots; amphibious features; availability within preboreal and mountainous zonal groups; the species belong- ing to East Asian and hemiendemic chorological groups.
pteridophytes, the Red Book, Irkutsk Region, Transbaikalian Region, the Republic of Buryatia
1. Malyshev L.I., Peshkova G.A. Osobennosti i genezis flory Sibiri (Predbaykal'e i Zabaykal'e). - Novosibirsk, 1984. - 264 s.
2. Kalyuzhnyy S.S., Vin'kovskaya O.P. Taksonomicheskiy analiz pteridoflor Baykal'skoy Sibiri i sopredel'nyh territoriy // Rastitel'nyy mir Aziatskoy Rossii. -2016. - № 3 (23). - S. 3-11.
3. Raunkiaer Ch. The life forms of plants and statistical plant geography. - Oxford, 1934. - 104 p.
4. Krasnaya kniga Rossiyskoy Federacii (rasteniya i griby). - M., 2008. - 885 s.
5. Krasnaya kniga Irkutskoy oblasti. - Irkutsk, 2010. - 480 s.
6. Krasnaya kniga Respubliki Buryatiya: redkie i nahodyaschiesya pod ugrozoy ischeznoveniya vidy zhivotnyh, rasteniy i gribov. - Ulan-Ude, 2013. - 688 s.
7. Krasnaya kniga Zabaykal'skogo kraya. Rasteniya. - Novosibirsk, 2017. - 384 s.
8. Kalyuzhnyy S.S., Vin'kovskaya O.P. Konspekt pteridoflory Baykal'skoy Sibiri // Vestn. KrasGAU. - 2015. - № 4. - S. 102-112.
9. Kalyuzhnyy S.S., Chimitov D.G. K vidovoy samostoyatel'nosti Aleuritopteris shensiensis (Sinopteridaceae) // Izv. Irkut. gos. un-ta. Ser. Biologiya. Ekologiya. - 2013. - № 6, 1 (17). - S. 110-114.
10. Smith W.G. Raunkiaer’s life forms and statistical meth- ods // Journal of Ecology. - 1913. - № 1. - P. 16-26.
11. Stanley A. Cain Life-forms and phytoclamate // The botanical review. - 1950. - № 1 (XVI). - P. 1-32.
12. Wu Z.-G., Raven P.H. Pteridaceae // Flora of China. - Vol. 2-3 (Lycopodiaceae through Polypodiaceae). Bei- jing; St. Louis. - 2013. - P. 169-256.
13. Galanin A.V., Belikovich A.V., Hrapko O.V. Flora Daurii. - Vladivostok, 2008. - T. 1. - C. 1-47.
14. Tubanova D.Ya., Namzalova B.D.C., Chimitov D.G. Nahodka Asplenium septentrionale (L.) Hoffm. (Aspleniaceae) v Buryatii // Izv. Irkut. gos. un-ta. Ser. Biologiya. Ekologiya. - 2018. - № 23. - S. 87-92.
15. Litt T., Brauer A., Goslar T. [et al.]. Correlation and syn- chronisation of Lategladal continental sequences in northern central Europe based on annually laminated lacustrine sediments // Quaternary Science Reviews. - 2001. - № 20 (11). - P. 1233-1249.
16. Roberts N. The Holocene an environmental history. - Third edition. - Wiley Blackwell, 2014. - 376 p.
17. Bezrukova E.V., Letunova P.P., Abzaeva A.A. [i dr.]. Rekonstrukciya dinamik prirodnoy sredy v golocene na osnove vysokorazreshayuschih pyl'cevyh zapisey iz basseyna oz. Baykal v kontekste vozmozhnogo vliyaniya etih izmeneniy na usloviya obitaniya chelo- veka // Severnaya Evraziya v antropogene: chelovek, paleotehnologii, geoekologiya, etnologiya i antropologiya. - Irkutsk, 2007. - T.1. - S. 42-50.
18. Tryon R.M., Tryon A.F. Ferns and allied plants: with special reference to tropical America. - New York, 1982. - 857 p.
19. Hulten E. The circumpolar plants. 1. Vascular Cryptograms, Conifers, Monocotyledons. Stockholm, 1962. - Bd. 8 (5). - 275 p.
