Bacidia absistens (Nyl.) Arnold (Ramalinaceae, Lecanorales) в России: номенклатура, описание, экология и распространение
Gerasimova, J. V.
- Publisher: Altai State University
(issn: 1560-7267, eissn: 1560-7259)
Флористические находки | Systematic reviews and new taxa
The article focuses on Bacidia absistens (Nyl.) Arnold. In this note, for the first time the description of species is given based on a single collection from European Russia. Nomenclature of species, new synonym Lecidea intermissa Nyl. and a key to the closely related species are provided; as well as the lectotype of L. intermissa is designated. Furthermore, its ecology and potential distribution of the species in Russia are outlined for the first time. B. absistens is a widespread species that occurs throughout from the Southern Scandinavia and the British Isles to the Mediterranean region, as well as along the coast of North America from Central California to the south of British Columbia. In Russia this species is known only from the single locality in Yaroslavskaya oblast. B. absistens is closely related to Bacidia friesiana (Hepp) Körb., B. subincompta (Nyl.) Arnold and B. laurocerasi (Delise ex Duby) Zahlbr., but differs mainly by the presence of abundant small crystals in the exciple (visible in polarized light) and dirty purplish (K+ green) or blue-green (N+ purplish with small blue crystals) epithecium.