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  • Phylogenomics resolves the rediscovered Himalayan endemic Brachymeniopsis gymnostoma (Bryophyta, Funariaceae), as a species of Entosthodon , prompting also the transfer of Clavitheca poeltii
Title: Phylogenomics resolves the rediscovered Himalayan endemic Brachymeniopsis gymnostoma (Bryophyta, Funariaceae), as a species of Entosthodon , prompting also the transfer of Clavitheca poeltii
Abstract Traits of the spore‐bearing generation have historically provided the basis for systematic concepts across the phylogenetic spectrum and depth of mosses. Whether taxa characterized by a simple sporophytic architecture are closely related or emerged from independent reduction is often ambiguous. Phylogenomic inferences in the Funariaceae, which hold the model taxonPhyscomitrium patens, revealed that several such shifts in sporophyte complexity occurred, and mostly within theEntosthodon‐Physcomitriumcomplex. Here, we report the rediscovery of the monospecific, Himalayan endemic generaBrachymeniopsisandClavitheca, after nearly 100 years and 40 years since their respective descriptions. The genera are characterized by, among other traits, their short sporophytes lacking the sporangial peristome teeth controlling spore dispersal. Phylogenomic inferences reveal thatBrachymeniopsis gymnostomaarose within the clade ofEntosthodons.str., a genus with typically long‐exserted capsules. We therefore propose to transferB. gymnostomato the genusEntosthodon, asE. gymnostomuscomb. nov.Furthermore,Clavitheca poeltii, the sole species of the genus, is morphologically highly similar toE. gymnostomus, and should also be transferred toEntosthodon, but is retained as a distinct taxon,E. poeltiicomb. nov., until additional populations allow for testing the robustness of the observed divergence in costa and seta length between the Nepalese and Chinese populations.  more » « less
Award ID(s):
1753800
PAR ID:
10502280
Author(s) / Creator(s):
; ; ; ; ; ; ; ;
Publisher / Repository:
International Association for Plant Taxonomy
Date Published:
Journal Name:
TAXON
Volume:
72
Issue:
6
ISSN:
0040-0262
Page Range / eLocation ID:
1216 to 1227
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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