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

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

TELEOMORPH

Hypoxylon subticinense Y.-M. Ju & J. D. Rogers, A Revision of the Genus Hypoxylon, p. 193. 1996.

Stromata effused-pulvinate, plane or with inconspicuous perithecial mounds, 1.5-4 cm diam x 0.7-0.8 mm thick; surface rust (39), fringed with luteous (12) margins when young, becoming dark brick (60) when mature; dull orange or orange brown granules immediately beneath surface and between perithecia, with KOH-extractable pigments luteous (12); the tissue below the perithecial layer black, 0.4-0.5 mm thick.

Perithecia obovoid to tubular, 0.1-0.3 mm diam x 0.3-0.5 mm high.

Ostioles slightly higher than or at the same level as the stromatal surface.

Asci 138-167 mm total length x 5-6 mm broad, the spore-bearing parts 55-70 mm long, the stipes 75-110 mm long, with apical ring bluing in Melzer's iodine reagent, discoid, 1 mm high x 2.5 mm broad.

Ascospores brown to dark brown, unicellular, ellipsoid, nearly equilateral, with narrowly to less frequently broadly rounded ends, (7-) 8-10 (-11) x 4-5 mm, with straight germ slit spore-length; perispore indehiscent in 10% KOH; epispore smooth.