Herbarium #
GZU 000286010
Stored under taxon name
Psora tuckermanii R. A. Anderson ex Timdal
Det./rev./conf./assigned
E. Timdal (O) 1990
Ident. history
orig.: Lecidea rubiformis; E. Timdal (O) 1990: Psora tuckermanii
Isotypus of
Psora tuckermanii R. A. Anderson ex Timdal
Bryologist 89: 273 (1986)
Typified by: E. Timdal (O) 1990
Collector
Shushan,S. & Weber,W.A. S 465 A Weber, Lichenes exsiccati distributed by the University of Colorado Museum, Boulder (Colorado) 23
Location
USA / Colorado
Label
U.S.A., Colorado. Boulder County: on shelving horizontal surface of sandstone ledges, west base of Steamboat Mountain, foodhills of Front Range 2 miles NW of Lyons
Alt. 1900 m
Habitat
on shelving horizontal surface of sandstone ledges
Annotations
No. 465 A
GZU Inv.-Nr. 71-87
Forms with pale greenish thalli are characteristic of alpine sites, while the rufous cortical color is developed a white edge to the thallus is variable in both habitats. Desert forms occuring exclusively on soil have a pale thallus wich becomes heavely pruinose. THere are no morphological characters of any value to consistently separate these forms. Deeply concave squamules with recurved margins are characteristic of the soil forms (cf. the form of L. decipiens comonly called L. crenata).
