Fedosov, V.E., G.Ya. Doroshina, D.Ya. Tubanova, O.M. Afonina & E.A. Ignatova. Four
Orthotrichaceae species new for Russian
flora
Arctoa (2017) 26: 154–165
doi: 10.15298/arctoa.26.15
A revision of Russian specimens
of the family
Orthotrichaceae brought numerous new records
in the genera
Zygodon, Lewinskya
and Orthotrichum, including four species new to
Russia. Lewinskya transcaucasica, recently
described from Georgia, is found in Dagestan
Republic (East Caucasus) and Altai
Mts. In addition,
specimens identified as L. striata from Siberia and Russian Far
East were found to be
similar to L. transcaucasica in ovate, emergent to short exserted
capsules and pairwise arranged exostome teeth, but differing from
the latter in typically sixteen
endostome segments and somewhat smaller
spores. Central Asian Orthotrichum crenulatum was revealed in Buryatia,
Zabaikalsky Territory, and Kotuyskoe Plateau;
mostly European O. tenellum was found in the
West Caucasus, Sochi surroundings; Zygodon dentatus was collected in
Carachay-Circassian Republic
(West Caucasus). Species descriptions and illustrations based on Russian
specimens, as well as data
on their ecology and distribution
are provided.