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Halecania alpivaga (Th. Fr.) M. Mayrh.
Family: Leprocaulaceae
[Lecania alpivaga Th. Fr.,  more]
Halecania alpivaga image
Life habit: cyanobacteriicolous (parasitic on cyanobacteria) | lichenized (mutualistic with algal photobionts) | lichenicolous (in/on lichens) thallus: crustose (crustaceous) – episubstratal – unspecified thallus: granular, granulose, granulate [th] upper surface: brown(ish) grey [th marginal and upper surface] specific structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (min) 1.0 [th] morphol substructures (eg areoles, lobes, branches) upper surface: granulose, granular | verruculose, minutely warted ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (low) 0.3 (high) 0.8 ascoma: sessile, superficial [ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex [ascm, if apoth] disc, mazaedium: brown(ish) black [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) grey [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless [ascm] paraphyses/-oids: present [ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: entirely amyloid (= Catillaria-, Teloschistes-types etc) ascospores: (median) 8.0 [asp] shape: ellipsoidal | ovoid, ovate [asp] length [µm]: (low) 14.0 (high) 17.0 [asp] width [µm]: (low) 5.0 (high) 7.0 [asp] septa: present [asp] septa: transversely septate [asp] transversal septa: (median) 1.0 [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: thick, distincly halonate conidiomata: absent | present primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: rock – calcareous, calciferous, basic | rock, stones, pebbles – unspecified.