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Micarea stipitata Coppins & P. James

Synonyms:

Family: PILOCARPACEAE

Habitat: Oceanic zone

Description

      Thallus crustose, rough and irregular, more or less bordered or fissured, gray-greenish, greenish if humid, dirty grayish a little glaucous or bluish if dry. Apothecia sessile, strongly convex to coarsely globose, proper margin absent, 0.1-0.3 mm in diameter, dirty whitish. Spores colorless, acicular and serpentiform by their sinuous shape and a slightly enlarged end, 3-7 times septate, 21-34 x 2-3 µm according to the literature; 5-6-7 times septed, 24-35 (40) x 2-2.5 µm according to our measurements. Pycnidia numerous scattered over the whole thallus but sometimes in groups in certain areas, globose-ovoid at the top of a short stipe, whitish. Bacilliform pycnidiospores, 6-8 x 1-2 µm. Branched paraphyses, 1-1.5 µm wide. Thallus; C-, K-, KC-, P-. Rare species occurring on tree bark (especially Ilex) in oceanic forests and woods. N.B. Very similar to Micarea pycnidiophora which differs from (very difficult!) by its C +/- red reaction of the thallus and pycnidia. Scoliciosporum pruinosum is also very similar both macroscopically and microscopically, but the latter species has pruinose apothecia and no pycnidia.







Micarea stipitata Pycnidiospores Le Loch 15
Jacques HAINE



Micarea stipitata Le Loc'h 1
Bernard BOUFFINIER



Micarea stipitata Le Loc'h 2
Bernard BOUFFINIER



Micarea stipitata Le Loc'h 3
Bernard BOUFFINIER



Micarea stipitata avec pycnides Le Loc'h 4
Bernard BOUFFINIER



Micarea stipitata Le Loc'h 5
Bernard BOUFFINIER



Micarea stipitata Le Loc'h 6
Bernard BOUFFINIER



Micarea stipitata Le Loc'h 7
Bernard BOUFFINIER



Micarea stipitata Le Loc'h 8
Jacques HAINE



Micarea stipitata Le Loc'h 9
Jacques HAINE



Micarea stipitata Coupe apothécie KOH Le Loc'h 10
Jacques HAINE



Micarea stipitata Asque Bleu coton Le Loc'h 11
Jacques HAINE



Micarea stipitata Asques Lugol Le Loc'h 12
Jacques HAINE



Micarea stipitata Spores Bleu Coton Le Loc'h 14
Jacques HAINE



Micarea stipitata Spores Lugol Le Loc'h 14
Jacques HAINE



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