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Ochrolechia frigida (Sw.) Lynge
Family: Ochrolechiaceae
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Stephen Sharnoff  
Life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – episubstratal – unspecified thallus: granular, granulose, granulate [th] upper surface: grey(ish) white | yellow(ish) white (ivory, off-white, cream-coloured) [th marginal and upper surface] specific structures: absent | present [th margin] cilia, cilioid structures: absent [th upper surface] isidia, isidioid structures: absent [th upper surface] soredia, soralia, soralioid structures: present ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (median) 5.0 (max) 7.0 ascoma: sessile, superficial [ascm, if apoth] disc, mazaedium: concave | plane, flat, flattened, expanded [ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (if pale: orange brown) [ascm, if apoth] disc, mazaedium: epruinose [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (if pale: orange brown) [ascm] paraphyses/-oids: present asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: with amyloid cap (= Icmadophila-, Lecidea-, Pertusaria-types etc) [asp] shape: ellipsoidal [asp] length [µm]: (low) 25.0 (high) 40.0 [asp] width [µm]: (low) 15.0 (high) 26.0 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent secondary metabolites: present secondary metabolites: gyrophoric acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: bryophytes – mosses, liverworts.
Ochrolechia frigida image
Samuel Brinker  
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Troy McMullin  
Ochrolechia frigida image
Stephen Sharnoff  
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Samuel Brinker  
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