Ignatov M.S.1, Ochyra R.2 1995. On the systematic position of Myurella and Bardunovia, genus novus (Plagiotheciaceae, Musci) // Arctoa. Vol.5: 45–60 [in English].

1 Tsitsin Main Botanical Garden of Russian Academy of Sciences, Botanicheskaya 4, Moscow 127276 Russia

2 Institute of Botany, Polish Academy of Sciences, Ul. Lubicz 46, PL-31-512 Krakow, Poland

KEYWORDS: bryophytes, mosses, taxonomy, Plagiotheciaceae, Myurella, Bardunovia, Platydictya.

ABSTRACT. The genus Myurella includes three rather widespread species, M. julacea (Schwaegr.) B. S. G., M. sibirica (C. Muell.) Reim. and M. tenerrima (Brid.) Lindb., and the local endemic of Northern Siberia, M. acuminata Lindb. et H. Arnell. The description of the latter species is amended and the species is illustrated for the first time. Also the relationship between Myurella and Platydictya is discussed, since by some characters Myurella acuminata is intermediate between them. From the Baikal area of South Siberia is described Bardunovia baicalensis gen. et spec. nova, which is superficially similar to Myurella acuminata. Bardunovia is closely related to the Herzogiella-Isopterygiopsis-Myurella-Orthothecium-Platydictya-complex of Plagiotheciaceae.

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