Biscogniauxia bartholomaei (Peck) Lar. N. Vasilyeva

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

CULTURES AND ANAMORPH

Colonies on 2% Difco oatmeal agar at ca. 20C and under 12 h fluorescent light reaching the edge of 9 cm Petri dish in 3 wk, at first white, felty, azonate, with diffuse margins, becoming hazel (88), overlain with amber (47) or honey (64) patches. Reverse uncolored.

Sporulating regions scattered over entire surface of colony, whitish.

Conidiogenous structure close to Virgariella-like branching pattern as defined in Ju and Rogers (1996).

Conidiophores hyaline, coarsely roughened, unbranched or dichotomously branched, usually with additional branches arising from the first level of conidiogenous regions, 3.5-4.5 mm broad, with one or two conidiogenous cells arising from each terminus.

Conidiogenous cells cylindrical, hyaline, finely roughened, 18-27 x 3-3.5 mm, bearing poroid conidial secession scars on apical region. Conidia produced holoblastically in sympodial sequence.

Conidia hyaline, smooth, ellipsoid to short cylindrical, 6-10 x 3-4 mm, with flattened base indicating former point of attachment to conidiogenous cell.