Consortium of Lichen Herbaria
- building a Global Consortium of Bryophytes and Lichens as keystones of cryptobiotic communities -
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Nephroma arcticum (L.) Torss.  
Family: Peltigeraceae
[Lichen arcticus L., moreNephromium arcticum (L.) Hav., Opisteria antarctica (Wulfen) Vain., Opisteria antarctica var. antarctica (Wulfen) Vain., Opisteria antarctica var. lobuligera (Müll. Arg.) Räsänen, Opisteria antarctica var. normalis (Vain.) Räsänen, Opisteria arctica (L.) Vain., Parmelia arctica (L.) Linds., Peltidea arctica (L.) Wahlenb., Peltigera arctica (L.) Räuschel]
Nephroma arcticum image
Lucy Taylor
  • LIAS
  • Resources
Botanische Staatssammlung München
Life habit: lichenized (mutualistic with algal photobionts) thallus: foliose (foliaceous), leaf-like thallus: continuous, diffuse, effuse [th] upper surface: yellow(ish) grey | yellow(ish) green [th upper surface]: epruinose [th marginal and upper surface] specific structures: present [th margin] cilia, cilioid structures: absent [th upper surface] isidia, isidioid structures: absent [th upper surface] soredia, soralia, soralioid structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (min) 30.0 [th] morphol substructures (eg areoles, squamules): contiguous, coherent (throughout the thallus) | distantly discontiguous [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | rugose, plicate, folded, pustulate, faveolate, wrinkled | uneven, undulate [th] lower surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) black | brown(ish) white ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (median) 20.0 (max) 30.0 ascoma: sessile, superficial [ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) black | red(dish) brown (if pale: orange brown) [ascm, if apoth] disc, mazaedium: epruinose [ascm] paraphyses/-oids: present asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): absent ascospores: (median) 8.0 [asp] shape: elongate-fusiform, ellipsoidal-fusiform [asp] length [µm]: (low) 23.0 (high) 27.0 [asp] width [µm]: (low) 4.0 (high) 5.0 (max) 6.0 [asp] septa: present [asp] septa: transversely septate [asp] transversal septa: (median) 3.0 [asp] pigmentation: pale brown [asp] perispore, epispore: not apparent conidiomata: absent | present conidia: bacilliform, bacillar [co] length [µm]: (low) 3.0 (high) 4.0 secondary metabolites: present secondary metabolites: methyl gyrophorate | nephroarctin | phenarctin | usnic acid | zeorin (hopane-6α,22-diol) primary photobiont: present secondary photobionts (eg in cephalodia): absent | present primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | bark, cork, plant surface – trunks, branches, twigs | rock, stones, pebbles – unspecified.
Nephroma arcticum
Open Interactive Map
Nephroma arcticum image
Troy McMullin
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Troy McMullin
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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Stephen Sharnoff
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This project made possible by National Science Foundation Awards: #1115116, #2001500, #2001394
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