Alectoria nigricans (Ach.) Nyl.

A rare representative of arctic-alpine terricolous fruticose lichens in the Czech Republic. In the country, the species was recorded only above the upper tree line in the Krkonoše Mountains (e.g. on Mt Sněžka) and in the Hrubý Jeseník Mts in sparse tundra vegetation and among stones in screes in the past. Recently, it has been known to occur only on Mt Sněžka. The overall range of the lichen is almost cosmopolitan, it is absent only in Africa. Alectoria nigricans differs from other genus members in its grey-brown to grey-black colour, chemistry and also DNA, and therefore it has recently been allocated in the genus Gowardia (Halonen et al. 2009). However, this split is not supported by many authors due to the short time in which it probably occurred (e.g. Divakar et al. 2017).

Literatura: Halonen P., Myllys L., Velmala S. & Hyvärinen H. (2009): Gowardia (Parmeliaceae) – a new alectorioid lichen genus with two species. – Bryologist 112: 138–146. Divakar P. K., Crespo A., Kraichak E., Leavitt S. D., Singh G., Schmitt I. & Lumbsch H. T. (2017): Using a temporal phylogenetic method to harmonize family and genus-level classification in the largest clade of lichen-forming fungi. – Fungal Diversity 84: 101–117.

taxonomic classification:

Ascomycota Lecanoromycetes Lecanorales Parmeliaceae Alectoria

Red List (Liška & Palice 2010):EN – endangered
Red List (Malíček 2023):C1 – critically endangered

Occurrence in the Czech Republic

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Altitude preferences

Distribution Timeline

Substrate type

Substrate preferences

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