Least Shadow Lichen - Phaeophyscia kairamoi
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.
- Details on Status Ranking and Review
Least Shadow Lichen (Phaeophyscia kairamoi) Conservation Status Review
Review Date =
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
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
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:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
On rock, soil, or mosses over rock.
Reproduces asexually from soredia and/or isidia and rarely sexually by spores from the apothecium.
Threats or Limiting Factors