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 Add this item to the list  808941 Original description
Description type:Original description 
Description:Setae unbranched, flexuous, 200–400 × 12–20 µm, arising from pseudoparenchymatous cells in a basal stroma or microsclerotia (ascomatal initials?), adjacent to cells that give rise to conidiophore stipes; setae yellow-brown, smooth to finely roughened, thick-walled, basal cell rounded and well-defined; stipe becoming thinner walled towards the acute apex; apical cell sometimes becoming fertile, setae extending beyond the conidiophores. Conidiophores consisting of a stipe, a penicillate arrangement of fertile branches, and rarely, an extension of the stipe, signifying continued growth and eventual branching of the stipe and secondary penicillate conidiophores. Stipe septate, hyaline, smooth, arising from tightly arranged pale to medium brown pseudoparenchymatous cells in a basal stroma, 40–150 × 4–5 µm. Conidiogenous apparatus 30–40 µm long, 40–50 µm wide; branches hyaline, smooth, 1–2-septate; primary branches subcylindrical to more swollen and doliiform to ellipsoid, 10–15 × 5–10 µm; additional branches (up to 2), 10–15 × 5–7 µm; terminal branches producing 1–6 phialides. Phialides elongate doliiform to reniform or subcylindrical, straight to slightly curved, aseptate, 10–20 × 3–4 µm; apex with minute periclinal thickening and inconspicuous collarette. Conidia cylindrical, rounded at both ends, straight, hyaline, (31–)35–38(–43) × 3(–3.5) µm, 1-septate, lacking a visible abscission scar, held in parallel clusters by colourless slime. Chlamydospores globose, 15–25 µm wide, thick-walled, red-brown, forming microsclerotia. Culture characteristics — Colonies reaching 50 mm diam after 2 wk at 22 ºC. On MEA spreading, with sparse aerial mycelium and smooth, even margins; surface with concentric circles of orange and ochreous, reverse apricot. On OA orange. On PDA surface and reverse orange, outer region amber. 
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