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Peltigera neopolydactyla (Gyelnik) Gyelnik
Family: Peltigeraceae
Peltigera neopolydactyla image
Stephen Sharnoff  
Thallus: foliose, approximately circular in outline (disintegrating into irregular groups of lobes with age), large, 10-20 cm in diam., adnate lobes: +flattened and elongate (2-4 cm wide and up to 10 cm long), often dichotomously branched, imbricate or separate; tips: rounded to subtruncate, often ascending and undulate upper surface: gray or blue-gray to brown when dry, bluish gray when wet, smooth, dull to somewhat shiny, occasionally somewhat scabrose, rarely pruinose marginally, without isidia; marginally sorediate soredia: pale gray to bluish tinged, coarsely granular medulla: white, +loosely interwoven hyphae photobiont: Nostoc lower surface: pale near margin, with anastomosing pale, smooth, flattened and reticulate veins, rhizinate rhizines: brown to black, fasciculate, little branched, at base of the lobes Apothecia: +round to oblong, becoming saddle-shaped, on short, ascending lobes, up to 9 mm in diam.; margin: smooth to crenulate disc: flat, dark brown to black, smooth ascospores: colorless to pale brown, acicular, 3(-5) septate, 50-90 x 3-5 ┬Ám Spot tests: all negative Secondary metabolites: tenuiorin, methyl gyrophate, gyrophoric acid, + 7α-acetoxyhopan-22-ol, hopane-15α-acetoxyhopan-22-ol, hopane-6 α,22-diol and unidentified terpenoids. Substrate and ecology: among mosses over soil World distribution: temperate and boreal regions of North America, Europe and Asia Sonoran distribution: rare at mid-elevations in southeastern Arizona. Notes: Only one collection was tentatively identified to P. neopolydactyla and further investigation is required to settle the problems in P. polydactylon group. Coarse thalli and dark little-branched, slender fasciculate rhizines are diagnostic of the specimen in contrast to P. polydactylon, but these characters are similar to those of P. dolichorhiza (Nyl.) Nyl., a species found farther southward in Mexico. The occurrence of P. occidentalis (E. Dahl) Kristinsson - with thick thallus which is often greenish when wet and has a centrally black lower surface and dark bushy rhizines - might also be possible at higher altitudes, but the relationships in this complex are not yet well understood.
Peltigera neopolydactyla image
Troy McMullin  
Peltigera neopolydactyla image
Gary Perlmutter  
Peltigera neopolydactyla image
Stephen Sharnoff  
Peltigera neopolydactyla image
Stephen Sharnoff  
Peltigera neopolydactyla image
Stephen Sharnoff  
Peltigera neopolydactyla image
Stephen Sharnoff  
Peltigera neopolydactyla image
Stephen Sharnoff  
Peltigera neopolydactyla image
Stephen Sharnoff  
Peltigera neopolydactyla image
Stephen Sharnoff  
Peltigera neopolydactyla image
Stephen Sharnoff  
Peltigera neopolydactyla image
Stephen Sharnoff  
Peltigera neopolydactyla image
Stephen Sharnoff  
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
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Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
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Peltigera neopolydactyla image
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Peltigera neopolydactyla image
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Peltigera neopolydactyla image
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Peltigera neopolydactyla image
Peltigera neopolydactyla image
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Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image
Peltigera neopolydactyla image