A review of Calypogeia (Marchantiophyta) in the eastern Sino-Himalaya and Meta-Himalaya based mostly on types Author Bakalin, Vadim A. Botanical Garden-Institute, Vladivostok, Russia https://orcid.org/0000-0001-7897-4305 vabakalin@gmail.com Author Klimova, Ksenia G. Botanical Garden-Institute, Vladivostok, Russia https://orcid.org/0000-0002-3229-1880 Author Nguyen, Van Sinh Institute of Ecology and Biological Resources, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam text PhytoKeys 2020 153 111 154 http://dx.doi.org/10.3897/phytokeys.153.52920 journal article http://dx.doi.org/10.3897/phytokeys.153.52920 1314-2003-153-111 475172DBEA915C52B9909334D3DB5478 Calypogeia trichomanis (L.) Corda Naturalientausch 12 [Opiz, Beitr. Naturgesch.]: 653. 1829. Rejected name, Art. 56, Szenzhen Code Remarks. There are several records of this rejected name. Calypogeia trichomanis was treated very broadly in former times. Mitten (1860) reported it from the Sikkim and Khasia Mountains, and Noguchi et al. (1966) recorded it for eastern Nepal. Piippo (1990) indicated it for Jilin, Anhui and Taiwan in China. Bapna and Kachroo (2000) reported several occurrences in India. In Europe, this species was sometimes estimated as the current Calypogeia azurea taxon, which is not present in East Asia ( Buczkowska et al. 2018 ). The understanding of " C. trichomanis " in East Asia is additionally complicated by synonymization of other names with ' C. trichomanis '; e.g., Hattori (1952) synonymized C. angusta under C. trichomanis and created additional confusion.