Flavocetraria nivalis (L.) Kärnefelt & A. Thell
Nomenclatural data
Acta Bot. Fenn. 150: 84, 1994. – Lichen nivalis L., Spec. Plant.: 1149, 1753. – Type: LINN 1273.101 (lectotype). – Cetraria nivalis (L.) Ach., Meth. Lich.: 293, 1803. – Platysma nivale (L.) Frege, Deutsch. Bot. Tachenbuch 2: 161, 1812. – Parmelia nivalis (L.) Spreng., Syst. Veget. 3: 525, 1831. – Allocetraria nivalis (L.) Randlane & Saag, Mycotaxon 44: 492, 1992.
Morphology
Description – see Kärnefelt et al. 1994.
Typical characters. Thallus erect, dorsiventral, yellow on both surfaces with basal parts dark yellow. Lobes foveolate and strongly wrinkled, especially on the upper side.
Chemistry
Contains usnic acid in the cortex. No medullary compounds detected.
Remarks
F. nivalis is a well-known lichen normally readily distinguished by its yellow thallus and strongly wrinkled lobes. In the Himalayas it may be confused with Allocetraria ambigua. For differences from the latter see under Allocetraria ambigua.
Ecology and distribution
Widely distributed in arctic and boreal regions of the northern hemisphere; occurs also in cold temperate areas of southernmost South America (Kärnefelt et al. 1994). In Asia this species is more restricted than C. cucullata, recorded from China [Neimongol, Xinjiang and Xizang provinces (Wei 1991)], Japan (Yoshimura 1979; Kurokawa 1991), Mongolia (Golubkova 1981) and Russia (Rassadina 1950). A related but separate taxon, F. nivalis ssp. montana Kärnefelt & A. Thell, is known from New Guinea (Kärnefelt et al. 1994). This species is included in the present study on the basis of the literature (Wei 1991). Grows on ground among mosses and other lichens in tundra or alpine vegetation.
Species pages available
cucullata | nivalis
Literature
Kärnefelt, I., Thell, A., Randlane, T. & Saag, A. 1994. | Randlane, T., Saag, A. & Obermayer, W. 2001.
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