Thyrea confusa Henssen resmi

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Tentative determination - Habitat: Vertical or slightly over hanged calcareous rock face, south oriented, occasionally wet through dripping water over rock surface, otherwise dry place, light and warm place, full sun, precipitations ~3.000 mm/year, average temperature 7-9 deg C, elevation 800 m (2.600 feet), alpine phytogeographical region. Substratum: hard calcareous rock surface. Ref.: http://www.nhm.uio.no/botanisk/lav/Photo_Gallery/PG_index.html, V.Wirth, Die Flechten Baden-Wuerttembergs, Ulmer, Vol.2., p724 and 906, Brodo, Sharnoff, Sharnoff, Lichens of North America, Yale Uni.Press, p682.