Biscogniauxia citriformis (Whalley, Hammelev, & Taligoola) Van der Gucht & Whalley
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 2.5-3 wk, at first white, felty, azonate, with diffuse margins, becoming grayish, overlain with dull black, carbonized patches. Reverse uncolored.
Sporulating regions scattered over entire surface of colony, whitish.
Conidiogenous structure with Periconiella-like branching pattern as defined in Ju and Rogers (1996).
Conidiophores brownish, coarsely roughened, composed of a main axis, 4-5 mm broad, and sometimes one or more major branches, branches terminating with two to five 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, 8-16 x 3-5 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, 5.5-7.5 x 1.5-2 mm, with flattened base indicating former point of attachment to conidiogenous cell.