On Frullania usamiensis (Frullaniaceae, Marchantiophyta) and its first record for Russia

Yu. S. Mamontov, T. I. Koroteeva, E. V. Sofronova, A. D. Potemkin

DOI: https://doi.org/10.31111/nsnr/2020.54.1.243

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Abstract

Frullania usamiensis is recorded for the first time for Russia from Kunashir Island, the southernmost island of the Greater Kuril Chain. It is the northernmost locality of the species, which was previously known from Japan (Honshu, Shikoku and Kyushu), China (coastal provinces Fujian and Liaoning) and the Republic of Korea. Frullania usamiensis is distinguished by (1) relatively large, emarginate or shallowly bilobed underleaves with obtuse lobes and mostly rounded sinus, (2) characteristic leaf lobules which are transversely elongated (when inflated), about × 1.5–1.9 as wide as long, with incurved rostral portion, and (3) smooth perianth with three keels. Description and photomicrographs of F. usamiensis from Kunashir Island are provided together with discussion on its ecology, variation and differentiation from having much in common F. kagoshimensis and F. taradakensis.

Keywords: Frullania usamiensis, liverworts, Kunashir Island, Russia

Section: Bryophytes

How to cite

Mamontov Yu. S., Koroteeva T. I., Sofronova E. V., Potemkin A. D. 2020. On Frullania usamiensis (Frullaniaceae, Marchantiophyta) and its first record for Russia. Novosti sistematiki nizshikh rastenii 54(1): 243–250. https://doi.org/10.31111/nsnr/2020.54.1.243

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