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Fringed Pelt Lichen - Peltigera pacifica
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State Rank Reason (see State Rank above)
Known from one location in western Montana, but expected to be more present.
General Description
Thallus foliose, to 15 cm diameter or more; lobes mostly about 0.5-1.0 cm broad; upper surface gray or brownish gray, smooth, shiny, lacking tomentum; lobe margins mostly upturned; veins dark, broad, and low to somewhat raised, contrasting with the pale interstices, paler near the margins; rhizines slender, mostly unbranched; primary photobiont blue-green; lobe margins and cracks usually with abundant lobules; soredia and isidia lacking; apothecia on rasied narrow lobes; and spot tests negative
(McCune and Geiser 2009) .
Diagnostic Characteristics
Distinctive in the generally abundant marginal lobules, narrow lobes, and glabrous upper surface. It frequently has a disheveled appearance, with a partailly discolored upper surface and margins partially consumed by herbivores. P. elisabethae also has a smooth, shiny upper surface and lobules, but it has strongly confluent, indistinct veins and has rhizines arranged in concentric rows
(McCune and Geiser 2009) .
Range Comments
Coastal Alaska to Oregon, mainly western Cascade Mountains, rarely inland to western Montana (McCune and Geiser 2009).
Habitat
On mossy rocks, logs, and soil.
Ecology
Photobiont: cyanobacteria (nitrogen-fixer).
Reproductive Characteristics
Reproduces sexually by spores from the apothecium.
Stewardship Responsibility
References
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