Hypoxylon pouceanum Berk. & Cooke

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

TELEOMORPH

Hypoxylon pouceanum Berk. & Cooke apud Cooke, Grevillea 11: 130. 1883.

º Hypoxylon truncatum (Schwein.: Fr.) J. H. Miller var. pouceanum (Berk. & Cooke) J. H. Miller, Monogr. of the World Species of Hypoxylon, p. 99. 1961.

Stromata glomerate to pulvinate, with perithecial mounds 1/3 to 1/4 exposed, 1.4-4 mm long x 1.5-2.5 mm broad x 1 mm thick; surface becoming blackish; blackish granules immediately beneath surface, with KOH-extractable pigments dilute olivaceous (48); the tissue below the perithecial layer inconspicuous, blackish.

Perithecia spherical, 0.6-0.7 mm diam.

Ostioles papillate, encircled with a possibly bovei-type disc 0.3-0.4 mm diam.

Asci not observed.

Ascospores brown, unicellular, ellipsoid, nearly equilateral, with narrowly rounded ends, laterally compressed, 12-14 x 4.5-5 x 2.5-3 mm, with straight germ slit spore-length on narrow edge; perispore indehiscent in 10% KOH; epispore smooth.