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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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Map Help and Descriptions
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.
Stewardship Responsibility
Threats or Limiting Factors
None identified.
References
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