Sofronova, E.V., A.D. Potemkin, Yu.S. Mamontov & R.R. Sofronov. Liverworts of the Mus-Khaya Mountain (Yakutia, Asiatic Russia)
Arctoa (2015) 24:
156-164
doi: 10.15298/arctoa.24.16
Mus-Khaya Mountain (“Ice mountain” in Yakutian), 2959 m alt.,
is the main summit of Suntar-Khayata Range situated
in the southern part of the Verkhoyansk Range. It is the second highest peak of
Yakutia and the largest glaciated area in the
North-East Siberia. The article characterizes in details this area as a center
of liverwort diversity in Verkhoyansk Range and the compiles chiefly
unpublished results of first bryological expedition
to Mus-Khaya Mt. in 2011. The liverwort flora of Mus-Khaya Mt. is very different in species composition and
species activity from the rest Verkhoyansk Range. In total 78 species and 2
varieties were recorded in the study area and listed. Among them 4 species
found for the first time for Yakutia in Mus-Khaya Mt. Area, 12 found for the first time for
Verkhoyansk Range and 11 species for Suntar-Khayata
Range. The list of liverworts of tundra belt of Suntar-Khayata
Range is expanded in 40 species. Three endemics of Russia Frullania
ignatovii, Scapania rufidula and Scapania
sphaerifera were recorded in Mus-Khaya
Mt. Area. Data on frequency, altitude range, recorded localities, habitats,
substrates, growth pattern, structures associated with
reproduction, representative specimens are listed for every species. Annotations
of selected species are accomplished by data on associated species and additional
notes on distribution, ecology, morphology, etc. Most remarkable are
records of rare in Russia and Yakutia Bucegia romanica,
Gymnocolea cf. fascinifera,
Herbertus cf. aduncus,
Isopaches alboviridis,
Gymnomitrion commutatum, Prasanthus suecicus,
Scapania sphaerifera.
Among them Bucegia romanica,
Gymnomitrion commutatum, Scapania sphaerifera are
included in the Red Data Book of Russian Federation.