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Lempholemma radiatum (Sommerf.) Henssen
Family: Lichinaceae
[Collema lichinodeum Nyl.,  more]
Lempholemma radiatum image
Life habit: lichenized (mutualistic with algal photobionts) thallus: foliose (foliaceous), leaf-like thallus: continuous, diffuse, effuse [th] upper surface: black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) [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) 0.2 (high) 0.6 [th] morphol substructures (eg areoles, squamules): contiguous, coherent (throughout the thallus) [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane [th] morphol substructures (eg lobes, branches): isotomic-dichotomous [th] lower surface: green(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) [th lower surface] specific structures: absent | present [th lower surface] rhizines, rhizoid structures: absent ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (median) 0.3 ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent [ascm, if apoth] disc, mazaedium ascospores: (median) 8.0 [asp] shape: ellipsoidal [asp] length [µm]: (low) 13.5 (high) 23.0 [asp] width [µm]: (low) 8.0 (high) 12.0 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless conidiomata: absent | present conidia: bacilliform, bacillar | [cur] – curved, unciform, falcate, sickle-shaped [co] length [µm]: (low) 3.0 (high) 5.0 primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: cyanobacterial.

substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | rock – calcareous, calciferous, basic | rock, stones, pebbles – unspecified.