Nephroma laevigatum Ach.  
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Family: Nephromataceae
[Nephroma hibernicum Nyl. ex Leight., moreNephroma laevigatum var. lusitanicum (Schaer.) Dombr., Nephroma lusitanicum Schaer., Nephroma lusitanicum f. exasperatum Norman ex Lynge, Nephroma lusitanicum f. hibernicum (Nyl.) R. Sant., Nephroma lusitanicum f. lusitanicum Schaer., Nephroma lusitanicum f. minutocarpum Barkh., Nephroma lusitanicum f. panniforme Cromb., Nephroma lusitanicum var. endoflavum Gyeln., Nephroma lusitanicum var. fimbriatum Gyeln., Nephroma lusitanicum var. hibernicum Nyl. ex Leight., Nephroma lusitanicum var. lusitanicum Schaer., Nephroma lusitanicum var. sublusitanicum (Gyeln.) Szatala, Nephroma lusitanicum var. subreagens Gyeln., Nephromium laevigatum (Ach.) Nyl., Nephromium laevigatum f. laevigatum (Ach.) Nyl., Nephromium laevigatum f. sublividum Vain., Nephromium laevigatum var. laevigatum (Ach.) Nyl., Nephromium laevigatum var. reagens Norman, Nephromium laevigatum var. subtomentellum Nyl., Nephromium lusitanicum (Schaer.) Nyl., Nephromium lusitanicum f. lusitanicum (Schaer.) Nyl., Nephromium lusitanicum f. panniforme Cromb., Nephromium lusitanicum var. exasperatum Norman, Nephromium lusitanicum var. hibernicum Nyl. ex Leight., Nephromium lusitanicum var. lusitanicum (Schaer.) Nyl., Nephromium lusitanicum var. normannum Hue, Nephromium subtomentellum (Nyl.) Cromb., Opisteria laevigata (Ach.) Vain., Opisteria lusitanica (Schaer.) Vain., Peltidea laevigata (Ach.) Sommerf., Peltigera laevigata (Ach.) Duby]
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Stephen Sharnoff  
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Botanische Staatssammlung Munchen

Global occurrence: Africa (incl Madagascar) | Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico) | Arctic.  Substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | bark, cork, plant surface – trunks, branches, twigs | rock, stones, pebbles – unspecified.  Life habit: lichenized (mutualistic with algal photobionts).  Thallus: foliose (foliaceous), leaf-like; [th] upper surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) grey | grey(ish) brown; [th upper surface]: epruinose; [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: absent; [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 2.0 (high) 5.0 (max) 10.0; [th] morphol substructures (eg areoles, lobes, branches) upper surface smooth, plane | uneven, undulate; [th] lower surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | white(ish) | brown(ish) black; [th lower surface] specific structures: absent | present; [th lower surface] rhizines, rhizoid structures: absent.  Ascomata: absent | present; ascoma: apothecial, apothecioid – hymenial; ascoma [mm]: (min) 2.0 (low) 4.0 (high) 7.0 (max) 10.0; ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent | 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) | 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: fusiform; [asp] length [µm]: (low) 17.0 (high) 20.0; [asp] width [µm]: (low) 5.0 (high) 7.0; [asp] septa: present, transversely septate; [asp] transversal septa: (median) 3.0; [asp] pigmentation: hyaline, colourless; [asp] perispore, epispore: not apparent.  Conidiomata: absent | present.  Conidia: bacilliform, bacillary; [co] length [µm]: (low) 4.0 (high) 5.0.  Secondary metabolites: present, hopane-6α,7ß,22-triol | zeorin (Sopane-6α,22-diol) | unknown/unidentified compound(s) | unknown/unidentified anthraquinone(s).  Primary photobiont: present, cyanobacterial.  Secondary photobionts (eg in cephalodia): absent.

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Troy McMullin  
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Stephen Sharnoff  
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