CONIDIAL STATE: Acremonium sp.

Mycelium not apparent after perithecial formation. Perithecia solitary or in groups of from 3 to 25, each aggregate enclosed in white hyphae; orange, globose, 230-250 (-460) µm diam., becoming collabent when dry, not changing colour in 3% potassium hydroxide. Perithecial wall 15-20 µm wide. Surface view: cells obscured by the hvphal covering. Longitudinal section: cells elliptical, 5-10 µm long x 4 wm wide.walls c. 1 µm thick, cells becoming progressively more flattened toward the interior of the perithecia) wall. Hyphal covering white, composed of long, branched, septate, smooth, wavy, flexuous, 5 µm wide hyphae with walls 1-2 µm thick; many free ends visible; hyphae around the ostiolar opening short. Hyphae of the covering arising from the surface of the perithecia) wall; covering completely enclosing 2 or more adjacent perithecia. Perithecial papilla short, acute, formed of narrow hyphal elements arising from the inner region of the perithecial wall; ostiolar canal periphysate. Asci broadly cylindrical to clavate, (45-) 70-80 (-103) x (5-) 9-12 (-19) µm, 8-spored; apices flat, simple; bases pointed or rounded; ascospores at first biseriate, becoming irregularly arranged in the upper two-thirds of each ascus. Ascospores ellipsoidal to elliptic-fusiform, (10-) 13-17 (-19) x (3-) 4-5 µm, equally 2-celled, with or without 2 drops in each cell, 3 or fewer complete striations visible in one plane of view, not constricted or slightly constricted at the septum, hyaline

CHARACTERISTICS IN CULTURE CMD: Ascospores germinating in high percent age after 4 days. Colonies 2.5 cm diam., translucenn to opaque, white, aerial mycelium forming hypha rope-like strands, margin undulate to dissected, non aromatic, medium non-pigmented. Perithecia forming within 6 weeks in cultures from single ascospores ME: 1 cm or less diam., opaque, white to pal, pink or pale salmon, aerial mycelium as hypha rope-like strands, margin dissected. non-aromatic medium non-pigmented. OA: 3 cm diam., opaque, white, aerial myceliun as hyphal rope-like strands, surface of the colour wrinkled, margin entire to dissected, non-aromatic medium non-pigmented. WAS: 4-8 cm diam., translucent, grey; aerial mycelium sparse, white; margin undulate, non-aromatic, medium non-pigmented. Perithecia form ing within 6 weeks in cultures from single ascospores. Phialophores forming on CMD and WAS in 3-6 weeks, unbranched, monophialidic, 0-1 septate, straight, smooth, (16-) 20-30 (-35) µm long, 2-3 µm wide basally, subtending hypha 2-3 µm wide. A solitary phialide constituting the terminal 11-20 (-35) µm of each phialophore, 1-1.5 µm wide at the unflared tip. Conidial production sparse. Phialoconidia elliptical to nearly cylindrical, 4-7 (-10) x 1.5-2 µm, unicellular, hyaline, with or without a protuberant, flattened, basal abscission scar. Arising in basipetal succession, held in a single, terminal, hyaline drop of liquid.