Biscogniauxia albosticta (Ellis & Morg.) Y.-M. Ju & J. D. Rogers

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

TELEOMORPH

Biscogniauxia albosticta (Ellis & Morg.) Y.-M. Ju & J. D. Rogers, Mycotaxon 66: 16. 1998.

º Nummularia albosticta Ellis & Morg., Bull. Torrey Bot. Club 24: 135. 1897.

º Hypoxylon albostictum (Ellis & Morg.) J. H. Miller, Mycologia 25: 325. 1933.

º Numulariola albosticta (Ellis & Morg.) P. Martin, J. S. African Bot. 35: 292. 1969; [nom. inval., ICBN Art. 33.2]; J. S. African Bot. 42: 75. 1976.

Stromata applanate, 2-4 cm long x 2-3 cm broad x 1 mm thick; outer dehiscing layer dark brown, thin; mature surface blackish; carbonaceous immediately beneath surface and between perithecia; tissue beneath perithecia inconspicuous.

Perithecia tubular, 0.2-0.4 mm diam x 0.8-0.9 mm high.

Ostioles lower than stromatal surface, with openings punctate, usually overlain with conspicuous white substance.

Asci eight-spored, cylindrical, 135-155 mm total length x 10-12 mm broad, the spore-bearing parts 115-125 mm long, the stipes 15-30 mm long, with apical ring bluing in Melzer's iodine reagent, discoid, 1.5-2.5 mm high x 4.5-5.5 mm broad.

Ascospores brown to dark brown, unicellular, ellipsoid, nearly equilateral, with narrowly rounded ends, smooth, 15.5-19.5 x 6.5-8.5 mm, with straight germ slit on both sides.