An atypical Byssoloma that lacks the conspicuous byssoid (arachnoid) apothecial margin, characteristic for most of the genus members. It is a widespread pioneer lichen with oceanic distribution, occurring even in tropical regions (often foliicolous, i.e. on leaves). In Europe it largely prefers western oceanic areas with a moderate climate at lower to middle elevations, where it usually grows on thin twigs and young trunks of conifers or deciduous trees with acidic bark (Holien 2000). There are only two historical records on its occurrence in the Czech Republic. The species was reported from (probably) shaded humid microhabitats on bark of young coniferous trees (a spruce and a fir), from the vicinity of Nové Město na Moravě (Servít 1910) and Hradec Králové (Novák 1912). However, the records have not been verified recently and may in fact refer to a similar, by that time unknown species * Fellhaneropsis myrtillicola*.
Literature: Holien H. (2000): Byssoloma marginatum new to Norway and the status of the species in Scandinavia. – Graphis Scripta 11: 61–63. Servít M. (1910): První příspěvek k lichenologii Moravy. − Zprávy Kommisse pro Přírodovědecké Prozkoumání Moravy 6: 1−83. Novák J. (1912): Vzácné, v Čechách dosud nezjištěné lišejníky. − Živa 22: 120.taxonomic classification:
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