Hypoxylon monticulosum Mont.

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

TELEOMORPH

Hypoxylon monticulosum Mont., Syll. Gen. Sp. Crypt., p. 214. 1856.

= Hypoxylon epiphaeum Berk. & M. A. Curtis apud Berk., Grevillea 4: 52. 1875.

º Hypoxylon investiens (Schwein.) M. A. Curtis var. epiphaeum (Berk. & M. A. Curtis) J. H. Miller, Monogr. of the World Species of Hypoxylon, p. 52. 1961.

= Hypoxylon mascariensis Berk. ex Cooke, Grevillea 11: 131. 1883.

º Hypoxylon berkeleyi Sacc., Syll. Fung. II, p. xxvii. 1883; [nom. rejic., ICBN Art. 63.1].

= Hypoxylon glomeratum Cooke, Grevillea 11: 134. 1883.

= Hypoxylon subnigricans Speg., Anales Soc. Ci. Argent. 18: 273. 1884.

= Hypoxylon antracoderma Speg., Anales Soc. Ci. Argent. 26: 30. 1888.

= Hypoxylon nuttallii Ellis & Everh., Proc. Acad. Nat. Sci. Philadelphia 1894: 346. 1894.

= Hypoxylon bakeri Earle, Bull. Torrey Bot. Club 26: 633. 1899.

º Hypoxylon rubigineoareolatum Rehm var. bakeri (Earle) J. H. Miller apud Chardon & Toro, J. Agric. Univ. Puerto Rico 14: 273. 1930.

= Hypoxylon multiforme (Fr.: Fr.) Fr. f. minor Starb., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 27, 3: 9. 1901.

= Hypoxylon rubigineoareolatum Rehm var. microspora Theiss., Ann. Mycol. 6: 345. 1908.

= Hypoxylon merrillii Syd. & P. Syd., Ann. Mycol. 15: 212. 1917.

= Hypoxylon cupricolor Petch, Ann. Roy. Bot. Gard. (Peradeniya) 8: 158. 1924.

Stromata pulvinate to effused-pulvinate, with inconspicuous to conspicuous perithecial mounds, 0.2-5 cm long x 0.2-1.5 cm broad x 0.5-1 (-1.5) mm thick; surface rust (39) to sepia (63), pruinose when young, blackish, shiny when mature; blackish woody to carbonaceous tissue immediately beneath surface and between perithecia, without apparent KOH-extractable pigments; the tissue below the perithecial layer inconspicuous to 0.5 mm thick.

Perithecia spherical to obovoid, 0.2-0.5 mm diam x 0.3-0.5 mm high.

Ostioles higher than the stromatal surface, minutely papillate.

Asci 80-120 mm total length x 4.5-6.5 mm broad, the spore-bearing parts 50-73 mm long, the stipes 30-59 mm long, with apical ring bluing in Melzer's iodine reagent, discoid, 1 mm high x 2 mm broad.

Ascospores brown to dark brown, unicellular, ellipsoid-inequilateral, with narrowly rounded ends, 7-11 x 3.5-4.5 (-5) mm, with sigmoid germ slit spore-length; perispore dehiscent in 10% KOH, smooth or with inconspicuous coil-like ornamentation; epispore smooth.