Thorny Pixie-Sticks - Cladonia uncialis
State Rank Reason (see State Rank above)
Known to occur at one location in Montana.
Thallus is two-parted, consisting of a foliose thallus and an erect podetium. Podetia lack soredia and primary squamules are not evident. Podetia are highly branched, 2-11 cm tall, 1-1.5(4) mm diameter, cupless, dilated, generally perforate at the axils, and are light green or pale to deep yellowish; ultimate branches form small whorls around open axils; and apothecia are small, less than 0.8mm, and brown. (McCune and Geiser 2009)
. Chemistry: Thallus K-, P-, UV+ or UV- (McCune and Geiser 2009)
Widespread, northern, but rare in the Pacific Northwest (McCune and Geiser 2009), northern Idaho, and Montana.
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
On soil and mosses. Also on talus slopes with cold-air drainage.
Reproduces by spores from the apothecium.
Threats or Limiting Factors
Recreation and road improvement (road widening) activities.