Hypoxylon cinnabarinum (Henn.) Y.-M. Ju & J. D. Rogers

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

TELEOMORPH

Hypoxylon cinnabarinum (Henn.) Y.-M. Ju & J. D. Rogers, A Revision of the Genus Hypoxylon, p. 99. 1996.

º Nummularia cinnabarina Henn., Hedwigia 36: 227. 1897.

= ? Hypoxylon tenue Starb., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 27, 3: 10. 1901.

= Hypoxylon rubiginosum (Pers.: Fr.) Fr. var. tropica J. H. Miller, Monogr. of the World Species of Hypoxylon, p. 31. 1961.

Stromata effused-pulvinate, plane or with conspicuous perithecial mounds, 0.6-2.8 mm thick; surface fulvous (43), rust (39), sienna (8), ochreous (44), or apricot (42); orange red granules immediately beneath surface and between perithecia, with KOH-extractable pigments orange (7); the tissue below the perithecial layer black, 0.3-2 mm thick.

Perithecia tubular to long tubular, 0.1-0.3 mm diam x 0.3-0.8 mm high.

Ostioles lower than the stromatal surface.

Asci (90-) 120-220 (-250) mm total length x 8-10 mm broad, the spore-bearing parts 62-85 mm long, the stipes 50-135 (-180) mm long, with apical ring bluing in Melzer's iodine reagent, 1-1.5 mm high x 2.5-3.5 mm broad.

Ascospores brown to dark brown, unicellular, ellipsoid, nearly equilateral, with broadly to narrowly rounded ends, 9.5-14 x 5-7.5 mm, with straight germ slit slightly less than spore-length to nearly spore-length; perispore indehiscent or, infrequently, dehiscent in 10% KOH, smooth; epispore smooth.