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Phaeocalicium compressulum (Nyl. ex Szat.) A.F.W. Schmidt
Family: Mycocaliciaceae
[Calicium compressulum (Nyl. ex Vain.) Ozenda & Clauzade,  more]
Phaeocalicium compressulum image
Life habit: saprobic (on decaying organic substrate) thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed [th marginal and upper surface] specific structures: absent ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma: pedicellate, stipitate, pedunculate, stalked [ascm, if apoth] disc, mazaedium: convex | distinctly convex [ascm, if apoth] disc, mazaedium: black(ish) | brown(ish) black | black(ish) brown asci: prototunicate [asc] tholus: not thickened [asc] tholus amyloidity (iodine reaction): absent [asp] shape: ellipsoidal [asp] length [µm]: (low) 9.0 (high) 14.0 [asp] width [µm]: (low) 4.0 (high) 5.5 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: pale brown | medium brown, brownish | dark brown primary photobiont: absent.

substrate: wood – dead, living.