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Xanthomendoza borealis (R. Sant. & Poelt) Søchting, Kärnefelt & S. Kondr. (redirected from: Xanthoria borealis)
Family: Teloschistaceae
[Xanthoria borealis R. Sant. & Poelt]
Xanthomendoza borealis image

Global occurrence: Antarctic – Antarctica | Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico) | Arctic.  Substrate: bryophytes – mosses, liverworts | rock, stones, pebbles – unspecified.  Life habit: lichenized (mutualistic with algal photobionts).  Thallus: foliose (foliaceous), leaf-like; thallus: continuous, diffuse, effuse; [th] upper surface: red(dish) yellow (orange, orange yellow) | yellow(ish) red (orange red); [th upper surface]: epruinose | pruinose; [th upper surface] pruina: scarce, sparse, fine; [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: present; [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 1.0 (high) 2.2; [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane; [th] lower surface: white(ish); [th lower surface] specific structures: present; [th lower surface] rhizines, rhizoid structures: present; [th lower surface] rhizines, rhizinoid structures: unbranched, simple.  Ascomata: absent.  Conidiomata: absent | present.  Conidia: bacilliform, bacillary; [co] length [µm]: (low) 3.0 (high) 4.0.  Secondary metabolites: present, emodin | fallacinal | parietin | parietinic acid | teloschistin.  Primary photobiont: present, chlorophytaceous – trebouxiaceous, chlorococcoid.  Secondary photobionts (eg in cephalodia): absent.