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Rinodina tephraspis (Tuck.) Herre
Family: Physciaceae
Rinodina tephraspis image
Stephen Sharnoff  

Global occurrence: Eurasia – Europe | Americas – North America (incl Mexico) | Arctic.  Substrate: rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified.  Life habit: lichenized (mutualistic with algal photobionts).  Thallus: crustose (crustaceous) – episubstratal – unspecified; thallus: cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate; [th] upper surface: grey(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | grey(ish) brown; [th marginal and upper surface] specific structures: absent.  Ascomata: absent | present; ascoma: apothecial, apothecioid – hymenial; ascoma [mm]: (median) 0.9; ascoma: sessile, superficial; [ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex | convex; [ascm, if apoth] disc, mazaedium: black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon); [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: grey(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | grey(ish) brown; [ascm, if apoth] margin excipular photobionts: present; [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless; [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] shape: ellipsoidal; [asp] length [µm]: (low) 17.0 (high) 24.0; [asp] width [µm]: (low) 8.0 (high) 14.0; [asp] septa: present; [asp] septa: transversely septate; [asp] transversal septa: (median) 1.0; [asp] pigmentation: pale brown | medium brown, brownish | dark brown; [asp] perispore, epispore: ornamented, rough, warted, striate, cracked.  Secondary metabolites: present, 5-O-methylhiascic acid | lecanoric acid | zeorin (hopane-6α,22-diol).  Primary photobiont: present, chlorophytaceous – trebouxiaceous, chlorococcoid.  Secondary photobionts (eg in cephalodia): absent.

Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Robert Klips  
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Robert Klips  
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Rinodina tephraspis image
Robert Klips