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Placynthiella icmalea  (Ach.) Coppins & P. James

Synonyms:

Family: TRAPELIACEAE

Habitat: Ubiquitous

Description

    Thallus crustose, spreading, more or less cracked, composed of minute granules, coralloid isidia-like, 25-200 µm tall, dark brown, blackish. Apothecia most often absent, or inconspicuous and scattered all over the thallus, 0.2-0.6 mm diam., disc brown-reddish, exciple paler. Ascospores colourless, simple, 1-septate, 8-12 x 4-5 µm. Photobiont: Chlorella. C+ pale red, K-, KC+ red, Pd-. Rather common, on soils, enriched in organic matter, amongst other lichens, occasionally on wood.*







Placynthiella icmalea Fumay
Jacques HAINE



Placynthiella icmalea Huelgoat 1
Bernard BOUFFINIER



Placynthiella icmalea Huelgoat 2
Bernard BOUFFINIER



Placynthiella icmalea Huelgoat 3
Bernard BOUFFINIER



Placynthiella icmalea Coupe d'apothécie
Jacques HAINE



Placynthiella icmalea Spores dans le rouge Congo
Jacques HAINE



Placynthiella icmalea sur une épave en bois Rostellec 1
Bernard BOUFFINIER



Placynthiella icmalea sur une épave en bois Rostellec 2
Bernard BOUFFINIER



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