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Peltigera scabrosa Th. Fr.
Family: Peltigeraceae
[Peltigera rufescens var. scabrosa (Th. Fr.) Nyl.]
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Stephen Sharnoff  
Life habit: lichenized (mutualistic with algal photobionts) thallus: foliose (foliaceous), leaf-like thallus: continuous, diffuse, effuse [th] upper surface: green(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | green(ish) grey | blue(ish) green (turquoise) | brown(ish) green (olivaceous, olive green) | grey(ish) brown [th upper surface]: pruinose [th marginal and upper surface] specific structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 25.0 (high) 50.0 [th] morphol substructures (eg areoles, squamules): distantly discontiguous [th] morphol substructures (eg areoles, lobes, branches) upper surface: verruculose, minutely warted [th] morphol substructures (eg lobes, branches): irregular [th] lower surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) [th lower surface] specific structures: present [th lower surface] rhizines, rhizoid structures: present [th lower surface] rhizines, rhizinoid structures: fasciculate ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (low) 2.0 (high) 6.0 ascoma: sessile, superficial [ascm, if apoth] disc, mazaedium: concave [ascm, if apoth] disc, mazaedium: red(dish) brown (if pale: orange brown) [ascm, if apoth] disc, mazaedium: epruinose [ascm] paraphyses/-oids: present [ascm] epihymenium, epithecium: red(dish) brown (pale: orange brown) asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc) ascospores: (median) 8.0 [asp] shape: acicular (needle-shaped) [asp] length [µm]: (min) 53.0 (low) 62.0 (high) 78.0 (max) 84.0 [asp] width [µm]: (low) 3.0 (high) 4.0 [asp] septa: present [asp] septa: transversely septate [asp] transversal septa: (median) 3.0 (max) 7.0 [asp] pigmentation: hyaline, colourless | pale brown [asp] perispore, epispore: not apparent secondary metabolites: present secondary metabolites: gyrophoric acid | methyl gyrophorate | tenuiorin | unknown/unidentified (tri-)terpenoid(s), (tri-)terpene(s) primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: cyanobacterial.

substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified.
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Stephen Sharnoff  
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Stephen Sharnoff  
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Lucy Taylor  
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Troy McMullin  
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Troy McMullin  
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