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Gyalecta subclausa is known from only three localities in the Czech Republic. This apparently relictual species is a characteristic inhabitant of sheltered damp calcareous overhangs. Obr. 2. Druh Gyalecta subclausa je známý pouze ze tří lokalit v rámci České republiky. Tento zřejmě reliktní zástupce je charakteristickým obyvatelem chráněných vlhkých vápencových převisů.
Source publication
This contribution presents selected finds of lichens made by the author during recent excursions conducted in the proximity of the SW outskirts of Prague, in the area called Český kras (Bohemian Karst). Twenty-nine species are listed of which thirteen are novelties for this area. In addition, the recent literature was excerpted and an update to the...
Context in source publication
Context 1
... rock outcrops just SE of the Bubovické vodopády waterfalls, S-facing slope, 49°56'51.7"N, 14°09'17. Fig. 2). This is the specification of the voucher specimen reported by Špryňar et al. (2015). In the Czech Republic, this rare taxon of damp limestone rocks is otherwise known from only two historical localities in Moravia: Zkamenělé zámky near Litovel (Suza 1928) and Blansek in the Moravian Karst (Vězda ...
Citations
Biodiversity is a key criterion in nature protection and often indicates habitats and
localities rich in endangered species. Our research, using 48 one-man one-day field trips,
located an exceptional lichen diversity hotspot and refugium for rare species, the Týřov
National Nature Reserve (Czech Republic, central Bohemia). Within its 410 hectares, we
detected 787 species of lichens and related taxa (675 lichens, 35 semilichens, 58 lichenicolous
fungi and 19 bark microfungi). This is more species of these organisms than has ever been
recorded from such a small area, up to 10 km2
, anywhere in Europe (and probably anywhere in
the world). The species richness is positively correlated with the habitat heterogeneity within
Týřov, which is very far from uniform. In most of the reserve, the species richness is fairly typi�cal for the broader region, and only three sites, with an overall area of a mere 80 hectares, have
distinctly higher species richnesses. The most species-rich site, with 502 species, is only about
25 hectares and is distinctly more diverse in habitats than other sites. The enormous importance
of Týřov for biodiversity protection is emphasized by the nine species described as new to sci�ence: Acarospora fissa, Bacidia hyalina, Buellia microcarpa, Micarea substipitata, Micro�calicium minutum, Rufoplaca griseomarginata, Verrucaria substerilis, V. tenuispora and
V. teyrzowensis. Three species are new to Europe, 55 to the Czech Republic and 191 species are
included in the national Red-list.
