Hypoxylon hughesii Y.-M. Ju & J. D. Rogers

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

TELEOMORPH

Hypoxylon hughesii Y.-M. Ju & J. D. Rogers, A Revision of the Genus Hypoxylon, p. 130. 1996.

Stromata effused-pulvinate, plane or with inconspicuous perithecial mounds, 0.7-6 cm long x 0.3-2.5 cm broad x 0.5-0.6 mm thick; surface vinaceous brown (84) or dark vinaceous (82); dull reddish brown granules immediately beneath surface and between perithecia, with KOH-extractable pigments dark violet (33) or without apparent pigments; the tissue below the perithecial layer inconspicuous.

Perithecia spherical, 0.1-0.2 mm diam.

Ostioles lower than the stromatal surface.

Asci 150-170 mm total length x 6-8 mm broad, the spore-bearing parts 63-74 mm long, the stipes 76-100 mm long, with apical ring lightly bluing in Melzer's iodine reagent, discoid, 1-1.5 mm high x 2.5-3 mm broad.

Ascospores brown, unicellular, ellipsoid, nearly equilateral, with narrowly to broadly rounded ends, smooth, 9-12 x 4-5.5 mm, with straight germ slit spore-length; perispore indehiscent in 10% KOH; epispore smooth.