Buellia asterella Poelt & Sulzer
Red list categories: Norway: , Sweden: , Finland: , EU:
By E. Timdal, - updated 04.09.1996.
[Map] Sources for map data: O, relevant literature
Abbreviations, map symbols and standard references
Norwegian distribution: The species is known from a few localities in the most continental part of the upper valley of southeastern Norway
- Counties:: Op. - Vegetation regions: Southern boreal. - Altitude: 450 - 750 m
World distribution: Buellia asterella is known from Norway, Great Britain, France, Germany and Switzerland
Ecology: In Norway, it grows on calciferous soil or in soil-filled fissures of schistose rock, in open, sun-exposed, south- to west-facing slopes
Threats: Terricolous specimens are possibly threatened by trampling by sheep and cattle
Status: There are only a few specimens at the known localities. The exact position of some collections are difficult to interpret; it is possibly only collected at two sites: The outcrops below Ulvsbu and the slope above Viste. Both sites are protected (Sandehorten Nature Reserve and Vistehorten Nature Reserve)
References:
Poelt,J/Sulzer,M (1974): Die Erdflechte Buellia epigaea, eine Sammelart. Nova Hedwigia 25: 173-194.
Specimens in other herbaria, litterature, etc.
OPPLAND, VÅGÅ, north of Viste, UTM: NP 00-01 59, alt.: 450 m, on bare calciferous soil on a dry S-exposed slope, , Santesson R. 14208a (Poelt & Sulzer 1974: 184)
OPPLAND, VÅGÅ, Viste, UTM: NP 00-01 59, alt.: 720-760 m, , 1948, Ahlner S. (S)
OPPLAND, VÅGÅ, Nordherads Solsida, in the steep rocky southern grass-slope N of Viste, UTM: NP 00-01 59, alt.: 470 m, on rocks, 1969, Moberg R. 1283 (UPS)