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Frutidella caesioatra (Schaerer) Kalb
Family: Ramalinaceae
[Lecidea arctica Sommerf.,  more]
Frutidella caesioatra image
Life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – episubstratal – unspecified thallus: granular, granulose, granulate [th] upper surface: black(ish) | grey(ish) | white(ish) | brown(ish) grey [th marginal and upper surface] specific structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.1 (high) 0.2 [th] morphol substructures (eg areoles, lobes, branches) upper surface: granulose, granular ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (min) 0.3 (low) 0.5 (high) 1.0 (max) 1.2 ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial [ascm, if apoth] disc, mazaedium: convex | distinctly convex | strongly convex, hemispherical, (sub-)globose [ascm, if apoth] disc, mazaedium: blue(ish) black | blue(ish) grey [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless | red(dish) blue (violet) | red(dish) brown (if pale: orange brown) [ascm] paraphyses/-oids: present [ascm] paraphyses/-oid cells width [µm]: (low) 1.5 (high) 2.0 [ascm] epihymenium, epithecium: blue(ish) green (turquoise) | green(ish) brown (olive brown) asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: amyloid with acuate axial body towards the apex (= Bacidia-, Buellia-, Ramalina-types etc) ascospores: (median) 8.0 [asp] shape: ellipsoidal [asp] length [µm]: (min) 12.0 (low) 15.0 (high) 18.0 (max) 25.0 [asp] width [µm]: (low) 5.0 (high) 8.0 (max) 9.0 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent conidiomata: absent | present conidia: filiform, vermiform [co] length [µm]: (low) 15.0 (high) 25.0 secondary metabolites: present secondary metabolites: atranorin | sphaerophorin | thiophanic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts.