Konstantinova N.A.1 2004. Iwatsukia jishibae (Steph.) Kitagawa (Cephaloziaceae, Hepaticae) in Russia // Arctoa. Vol. 13: 203–210 [in English].

1 Polar-Alpine Botanical Garden, Kola Sci. Center of Russian Academy of Sciences, Kirovsk-6, Murmansk Province 184256 Russia

KEYWORDS: new records, Iwatsukia jishibae, Russia, Baikal Lake, Khamar-Daban Range, phytogeography, relic distribution

ABSTRACT. The worldwide rare Iwatsukia jishibae (Steph.) Kitagawa was found to be relatively common in Khamar-Daban Range near the south end of Lake Baikal (South Siberia). A detailed description of this species,  as well as differences from allied species are given,  and there is a key to genera of Cephaloziaceae in Russia. Mainly a tropical-subtropical species, I. jishibae has a disjunct distribution in Central America, West and East Africa, Indian Ocean islands, Papua-New Guinea, Nepal, Japan, Korea and South Siberia.  This species occurs exclusively on rotting wood.  Iwatsukia exigua is believed to be conspecific with I. jishibae.

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