Recognition of Sahashia (Ophioglossaceae: Botrychioideae) [NOT VALID]

gonggashan88 commented 9 months ago

Author(s) of proposal

Li-Bing Zhang, Liang Zhang

Name of taxon

Sahashia

Rank of taxon

Genus

Approximate number of species affected

1

Description of change

Segregating Sahashia from Botrupus s.l.

Reason for change

Botrypus strictus and B. virginianus have been consistently found to be paraphyletic in relation to the rest of Botrychioideae (Hauk et al., 2003; Shinohara et al., 2013; Zhang et al., 2020; Zhang & Zhang, 2022; Kuo et al., 2023). Thus, Sahashia was described to accommodate Botrypus strictus so that the monophyly of Botrypus can be retained.

Sahashia is defined by the sporophores that are a compact panicle. Geographically, the only species of Sahashia occurs in East Asia and the Far East of Russia, whereas those of the newly defined Botrypus have sporophores as an open panicle and are distributed in temperate regions within the Northern Hemisphere and Central and South Americas.