Review of the type specimens of species described by J. Hedwig inPhascumHedw. (Pottiaceae).

Abstract

Johannes Hedwig, in his early publication Species muscorum frondosorum, included 12 species under the genus Phascum Hedw. Phascum curvicolle Hedw. has been effectively lectotypified and P. cohaerens Hedw. was found to have a satisfactory holotype. The previously published typifications of P. alternifolium Hedw., P. muticum Hedw., P. piliferum Hedw. and P. subulatum Hedw. are clarified or corrected herein. Of the remaining species, over 200 years after their valid publication, P. crispum Hedw., P. cuspidatum Hedw., P. nitidum Hedw., P. patens Hedw., P. serratum Hedw. and P. stoloniferum Hedw. are typified for the first time. As a consequence of lectotypification, Ephermerum minutissimum Lindb. is placed in synonymy with E. serratum, and Ephemerum stoloniferum (Hedw.) L.T.Ellis & M.J.Price comb. nov. is proposed. Associated with the typification of P. cuspidatum, the lectotype of Phascum schreberianum Dicks. is designated more precisely herein.

New and Noteworthy Bryophyte Records from Croatia

“…Conservation status in SE Europe follows Sabovljević et al (2004 and Stefănuţ & Goia (2012) using abbreviations CR for critically endangered, EN for endangered and VU for vulnerable species (IUCN 2017). The revision of the genus Ephemerum Hampe was based on Holyoak (2010) and Ellis & Price (2015), while this of Tortella fasciculata (Culm.) Culm.…”

Ephemerum homomallum (Pottiaceae) and Torrentaria aquatica (Brachytheciaceae), Two Additional American Moss Species New to Africa

“…Species of Ephemerum are distributed worldwide, although they are mostly found in the temperate regions of both hemispheres, they are rare and localized in the tropics, and absent from the polar regions. The genus consists of 20 species, which are now generally accepted, although nine species need a careful taxonomic assessment because they have not been studied since their descriptions (Crosby et al, 2000;Ellis & Price, 2015;Frey & Stech, 2009;Holyoak, 2010). Traditionally, Ephemerum was positioned in a family of its own, Ephemeraceae, but molecular data established that it is nested in the Pottiaceae subfamily Trichostomoideae (Goffinet & Cox, 2000), although morphologically it appears to be a discordant element in this family.…”

A Small Addition to the Flora of North America: Ephemerum recurvifolium (Dickson) Boulay (Bryopsida: Pottiales)

“…The fourth species is named ‘ Ephemerum serratum (Hedwig) Hampe’ in many floras, both European and North American. However, this name has been reapplied to a fifth species, formerly known as ‘ Ephemerum minutissimum Lindberg,’ as the result of lectotypification (Ellis and Price 2015). The fifth species is not recognized in North American floras (e.g., Bryan 2007).…”