Abstract
The occurrence of two epiphytic moss species, <em>Orthotrichum alpestre </em>Bruch &amp; Schimp. and <em>O. </em><em>schimperi </em>Hammar, in the moss flora of Poland is discussed. The former represents an entirely new country record based on a specimen collected from the Polish Eastern Carpathians, whereas the latter is reinstated as a member of the Polish moss flora. The complex and entangled taxonomic and nomenclatural history of <em>O. schimperi </em>is outlined, sources of its confusion are discussed, and two correctly determined specimens from Poland are cited. The two species are briefly characterized and illustrated, and a key to the genera and species of Polish orthotrichaceous mosses is presented.
Highlights
Orthotrichum Hedw. is one of the most distinctive of all moss genera, which is at a glance distinguished by its immersed to short-exserted capsules that are most often ribbed and only seldomly smooth with large campanulate-mitrate and usually hairy calyptrae covering the entire capsule
Twenty species of the broadly interpreted genus Orthotrichum have been recorded from Poland in the latest catalog of Polish mosses (Ochyra et al, 2003)
Plášek and Ochyra / Orthotrichum alpestre and O. schimperi in Poland worldwide synopsis of species and infrageneric taxa of Orthotrichum, Lewinsky (1993) recognized 116 species and 11 varieties; since 54 new species have been described in, transferred to, or reinstated as distinct species of Orthotrichum and/or its segregates. This is because the broadly understood genus Orthotrichum was recently split into four segregates (Damsholt et al, 1969; Lara et al, 2016; Plášek, Sawicki, & Ochyra, 2016; Plášek et al, 2015; Sawicki et al, 2017), including Nyholmiella Holmen & E
Summary
Orthotrichum Hedw. is one of the most distinctive of all moss genera, which is at a glance distinguished by its immersed to short-exserted capsules that are most often ribbed and only seldomly smooth with large campanulate-mitrate and usually hairy calyptrae covering the entire capsule. Plášek and Ochyra / Orthotrichum alpestre and O. schimperi in Poland worldwide synopsis of species and infrageneric taxa of Orthotrichum, Lewinsky (1993) recognized 116 species and 11 varieties; since 54 new species have been described in, transferred to, or reinstated as distinct species of Orthotrichum and/or its segregates This is because the broadly understood genus Orthotrichum was recently split into four segregates (Damsholt et al, 1969; Lara et al, 2016; Plášek, Sawicki, & Ochyra, 2016; Plášek et al, 2015; Sawicki et al, 2017), including Nyholmiella Holmen & E. Several species have been recorded in Poland only in the nineteenth and/or in the first half of the twentieth century and are known only from these historical collections and have not been recorded after World War II These are Nyholmiella gymnostoma, Orthotrichum scanicum, Plenogemma phyllantha, Ulota drummondii Beauv.) Hammar (Plášek, Smoczyk, & Ochyra, 2016) have recently been rediscovered in Poland after a long time
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
