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Gowardia nigricans (Ach.) P. Halonen, L. Myllys, S. Velmala, & H. Hyvarinen (redirected from: Alectoria nigricans)
Family: Parmeliaceae
[Alectoria nigricans (Ach.) Nyl.,  more]
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Stephen Sharnoff  
Life habit: lichenized (mutualistic with algal photobionts) thallus: fruticose (fruticous), shrub-like, beard-like [th] upper surface: grey(ish) | yellow(ish) (if dull: buff) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | grey(ish) black | white(ish) brown (beige) [th marginal and upper surface] specific structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 1.0 (high) 1.5 [th] morphol substructures (eg areoles, lobes, branches) upper surface: pseudocyphellate, with pseudocyphellae ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (low) 1.5 (high) 4.0 [ascm] paraphyses/-oids: present asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: amyloid with widening axial body towards the apex (= Lecanora-, Parmelia-, Rinodina-types etc) ascospores: (median) 8.0 [asp] length [µm]: (low) 30.0 (high) 41.0 [asp] width [µm]: (low) 20.0 (high) 23.0 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent secondary metabolites: present secondary metabolites: alectorialic acid | barbatolic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: soil, clay, humus, turf, detritus, dead leaves | bark, cork, plant surface – trunks, branches, twigs | rock, stones, pebbles – unspecified.
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Troy McMullin  
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Troy McMullin  
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Stephen Sharnoff  
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