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Least Shadow Lichen - Phaeophyscia kairamoi
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State Rank Reason (see State Rank above)
This species occurs sporadically in the northern United States and southern Canada and is known from a few locations in western Montana.
General Description
Thallus foliose, small, mostly 1-3 cm in diameter; apothecia often lacking; soredia marginal with granular isidioid soredia or isidia present; thallus bearing sparse pale or darkening cortical hairs, especially on young lobe tips, on apothecial margins, or on isidia/soredia
McCune and Geiser 2009 .
Diagnostic Characteristics
Similar to P. hirsuta, but with differing habitats. P. hirsuta is found on bark while P. kairamoi is found on rock
McCune and Geiser 2009 .
Range Comments
Boreal North America south to Arizona (McCune and Geiser 1997). Just found in California (Riefner 1995). Ontario.
Observations in Montana Natural Heritage Program Database
Number of Observations: 2
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Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Habitat
On rock, soil, or mosses over rock.
Reproductive Characteristics
Reproduces asexually from soredia and/or isidia and rarely sexually by spores from the apothecium.
Threats or Limiting Factors
None identified.
References
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