Hypoxylon thouarsianum (LÚv.) C. G. Lloyd

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

TELEOMORPH

Hypoxylon thouarsianum (Lév.) C. G. Lloyd, Mycol. Writings 5: 26. 1919.

º Sphaeria thouarsiana Lév., Ann. Sci. Nat. Bot., sér. III, 5: 258. 1846.

º Daldinia thouarsiana (Lév.) Sacc., Syll. Fung. I, p. 395. 1882.

= Hypoxylon malleolus Berk. & Ravenel apud Berk., Grevillea 4: 49. 1875.

º Daldinia malleola (Berk. & Ravenel) Kauffm., Pap. Michigan Acad. Sci. 11: 168. 1930.

= Hypoxylon occidentale Ellis & Everh., Proc. Acad. Nat. Sci. Philadelphia 1894: 345. 1894.

= Hypoxylon gilletianum Sacc., Ann. Mycol. 4: 76. 1906.

º Hypoxylon thouarsianum (Lév.) C. G. Lloyd var. gilletianum (Sacc.) J. H. Miller, Monogr. of the World Species of Hypoxylon, p. 89. 1961.

= Hypoxylon amaniense Henn., Bot. Jahrb. Syst. 38: 115. 1905.

= ? Hypoxylon africanum Van der Bijl, S. African J. Sci. 25: 185. 1928. Fide Miller (1961).

Stromata hemispherical to spherical, with inconspicuous perithecial mounds, 0.8-5 cm diam x 0.4-3 cm thick; surface blackish brown; blackish granules immediately beneath surface, with KOH-extractable pigments dull green (70); the tissue below the perithecial layer massive, woody, dark brown.

Perithecia obovoid, 0.3-0.7 mm diam x 0.5-1.3 mm high.

Ostioles papillate, encircled with a sunken but convex truncatum-type disc 0.2-0.5 mm diam.

Asci not observed.

Ascospores light brown to brown, unicellular, ellipsoid-inequilateral, shriveled, with narrowly rounded ends, 14-24 x 4-5.5 mm, with straight germ slit spore-length on the flattened side; perispore indehiscent in 10% KOH, smooth; epispore smooth.