Biscogniauxia capnodes (Berk.) Y.-M. Ju & J. D. Rogers
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 1-1.5 wk, at first white, felty, azonate, with diffuse and ropy margins, becoming honey (64), hazel (88), or greenish olivaceous (90) from center outwards. Reverse citrine (13) or greenish olivaceous (90), becoming olivaceous black (108).
Sporulating regions scattered over entire surface of colony, whitish to grayish.
Conidiogenous structure with Periconiella-like branching pattern as defined in Ju and Rogers (1996).
Conidiophores yellowish to brownish, coarsely roughened, composed of a main axis, 3-5 mm broad, and sometimes one or more major branches, branches terminating with three to seven conidiogenous cells arising in whorls from the main axis and/or from major branches or from additional subordinate branches; additional branches infrequently produced.
Conidiogenous cells cylindrical, hyaline to yellowish, finely roughened, 8-14 x 3.5-5 mm, bearing poroid conidial secession scars on apical region, with apices becoming distorted from production of numerous conidia. Conidia produced holoblastically in sympodial sequence.
Conidia hyaline, smooth, ellipsoid, 5-7.5 x 2.5-3.3 mm, with flattened base indicating former point of attachment to conidiogenous cell.