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Placynthium pannariellum (Nyl.) H. Magn.
Family: Placynthiaceae
[Lecothecium pannariellum (Nyl.) Blomb. & Forssell,  more]
Placynthium pannariellum image
Life habit: lichenized (mutualistic with algal photobionts) thallus: placodioid-crustose, placodioid-foliose | fruticose (fruticous), shrub-like, beard-like thallus: continuous, diffuse, effuse [th] upper surface: black(ish) | blue(ish) black | green(ish) blue | black(ish) brown | green(ish) brown (olive brown) [th marginal and upper surface] specific structures: present [th margin] cilia, cilioid structures: absent [th upper surface] isidia, isidioid structures: present [th upper surface] soredia, soralia, soralioid structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.7 (high) 1.0 [th] morphol substructures (eg areoles, squamules): contiguous, coherent (throughout the thallus) ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (min) 1.0 [ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (if pale: orange brown) [ascm] paraphyses/-oids: present asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc) ascospores: (median) 8.0 [asp] length [µm]: (low) 15.0 (high) 20.0 [asp] width [µm]: (low) 5.0 (high) 7.0 [asp] septa: present [asp] septa: transversely septate [asp] transversal septa: (min) 1.0(median) 3.0 [asp] pigmentation: hyaline, colourless secondary metabolites: absent primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: cyanobacterial.

substrate: soil, clay, humus, turf, detritus, dead leaves | rock, stones, pebbles – unspecified.