Bryomyces, a Genus Described from Foliar Moss Gemmae, Is an Earlier Name for Plenogemma (Orthotrichaceae)

John J. Atwood; William R. Buck; Bernard Goffinet

doi:10.3417/2025994

John J. Atwood Missouri Botanical Garden
William R. Buck The New York Botanical Garden
Bernard Goffinet University of Connecticut

DOI: https://doi.org/10.3417/2025994

Keywords: Bryomyces, bryophytes, Calymperes, gemmae, nomenclature, Orthotrichum, Phragmidiolum, Plenogemma, Ulota

Abstract

Bryomyces Miq. and Phragmidiolum Müll. Hal., originally described as genera of endophytic bryophilous ascomycetes, refer instead to foliar moss gemmae based on a comparative assessment of their published illustrations with bryophyte specimens and relevant bryological literature. Phragmidiolum and Plenogemma Plášek, Sawicki & Ochyra are morphologically congeneric with Bryomyces, the latter of which has priority. The new combination B. phyllanthus (Brid.) J. J. Atwood, W. R. Buck & Goffinet is proposed. Bryomyces elegans Miq., Phragmidiolum apicale Müll. Hal., and Ulota phyllantha Brid. [≡ Plenogemma phyllantha (Brid.) Sawicki, Plášek & Ochyra] are new synonyms of that species. Bryomyces montagneanus Miq. is a new synonym of Calymperes androgynum Mont. [= Syrrhopodon rigidus Hook. & Grev.], whereas B. muelleri Miq., Phragmidiolum ramosum Müll. Hal., and Phragmidiolum sparsum Müll. Hal. are new synonyms of Orthotrichum lyellii Hook. & Taylor [≡ Pulvigera lyellii (Hook. & Taylor) Plášek, Sawicki & Ochyra]. Lectotypes are designated for B. montagneanus, Phragmidiolum, Phragmidiolum apicale, and Phragmidiolum ramosum, while a neotype is designated for B. elegans.