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Overview
| Synopsis:
| Rosettiform, solarizing to brown, with laminal granular to isidiose soredia; medulla K+ slow red brown or K-, KC+ orange, P-.
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| Distribution:
| Widespread in northern hemisphere, tundra to boreal and montane. Helvetia, Schleicher 279a, China (Wei 1991), Morocco (Egea 1996), Svalbard (Elvebakk & Hertel 1996 -- and see H. subobscura); Xizang (Tibet) (Wei & Jiang (1986). Kazakhstan (Wagner & Spribille 2005, unpublished list).
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| Habitat:
| cool temperate to arctic-alpine
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| Range:
| Southern Rocky Mountains, Arctic, Subarctic, Alpine, Northern Rocky Mountains
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| Substrate Notes: | Usually on conifers, especially Picea, Abies, Pseudotsuga; occasional on tundra sod or moss over rock
| | Abundance in North America: | Common
| | Substrate: | Typically
| | Host: | Conifers
| | On Rock: | Rarely
| | On Moss/Detritus/Sod: | Rarely
| | Authority: | (Nyl.) Ras.
| | References: | Hansen & McCune (2010), Westberg et al. (2011)
| | Synonymy: | Hypogymnia dichroma, Hypogymnia salsa?, Hypogymnia verruculosa?
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Habit
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