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Page number:78 
Description type:Non-original description 
Description:Mycelium immersed and superficial, hyphae branched, (0.5-)1-5 µm wide, septate, sometimes constricted at septa, subhyaline to pale or medium brown, with swellings and constrictions, often irregular in outline, smooth to sometimes minutely verruculose, sometimes covered by polysaccharide-like material appearing rough-walled, walls unthickened or very slightly thickened, sometimes forming ropes. Conidiophores solitary, macronematous and micronematous, arising terminally and laterally from hyphae; macronematous conidiophores solitary, sometimes in groups of 2-3, erect, straight or slightly flexuous, cylindrical-oblong to almost filiform, sometimes slightly to distinctly geniculate towards the apex, often subnodulose or nodulose with an apical and sometimes few additional swellings on a lower level, swellings quite distant from the apex and from each other, most conidiophores neither geniculate nor nodulose, unbranched or branched, branching often at an angle of 45-90°, just below the apex or at a lower level, branches sometimes only as short denticle-like prolongations just below a septum, occasionally very long, conidiophores 30-310(-460) — 2.5-4 µm, on OA up to 900 µm long, septate, sometimes distinctly constricted at septa, pale to medium brown or olivaceous-brown, smooth, sometimes slightly rough-walled at the base, walls somewhat thickened, sometimes slightly attenuated towards the apex and distinctly swollen at the base, with age conidiophores becoming darker and more thick-walled; micronematous to semimacronematous conidiophores narrower, paler, filiform to narrowly cylindrical-oblong, non-nodulose or only slightly swollen at the apex, unbranched, 17-85 — (1-)2-2.5 µm, with few septa or reduced to conidiogenous cells, pale brown or subhyaline, smooth, walls unthickened or almost so, with a single or up to seven subdenticulate, pronounced loci crowded at the apex. Conidiogenous cells integrated, terminal and intercalary, cylindrical-oblong, sometimes short geniculate at the apex, often nodulose, swellings up to 5 µm wide, cells (4-)10-44 µm long, loci often situated on swellings but not restricted to them, mostly only a single swelling per cell, in terminal cells apex usually head-like uni- or multilaterally swollen with up to eight pronounced, subdenticulate to denticulate loci crowded at the tip, in intercalary conidiogenous cells loci often sitting at about the same level (arranged like a garland round about the stalk) or situated on small lateral shoulders, loci 1-1.5(-2) µm diam, thickened and darkened-refractive. Ramoconidia occasionally formed, subcylindrical or cylindrical-oblong, 22-41 — 3-4(-5) µm, 0(-1)-septate, base broadly truncate, 2-3.5 µm wide. Conidia catenate, in densely branched chains, 1-4(-6) conidia in the terminal unbranched part of the chain, branching in all directions, straight, small terminal conidia subglobose, obovoid, limoniform, sometimes globose, (2-)2.5(-6) — (1.5-)2-3 µm (av. ± SD: 3.7 ± 1.0 — 2.2 ± 0.4), aseptate, apex broadly rounded, intercalary conidia ovoid, ellipsoid or subcylindrical, 4-12(-17) — (1-)2-3(-4.5) µm (av. ± SD: 8.1 ± 2.7 — 2.8 ± 0.6), aseptate, occasionally 1-septate, with up to 5(-7) distal hila, sometimes cell lumen distinct, secondary ramoconidia ellipsoid, fusiform to subcylindrical or cylindrical, (6-)7-25(-31) — (2-)2.5-4(-5) µm (av. ± SD: 15.0 ± 5.8 — 3.2 ± 0.5), with (1-)2-6(-7) distal hila, sometimes with 1-2 hila at the basal end, 0-1(-2)-septate, sometimes distinctly constricted at septa, with age more frequently septate, pale brown or pale olivaceous-brown, smooth, occasionally irregularly rough-walled, walls unthickened or almost so, attenuated towards apex and base, hila conspicuous, subdenticulate to denticulate, 0.5-1.8(-2) µm diam, thickened and darkened-refractive; microcyclic conidiogenesis occasionally occurring with conidia forming secondary conidiophores.

Culture characteristics: Colonies on PDA attaining up to 84 mm diam after 14 d, smoke-grey to grey-olivaceous or olivaceous-grey, reverse leaden-grey to olivaceous-black, woolly to fluffy, margin glabrous to feathery, grey-olivaceous to white, aerial mycelium abundant, high, fluffy, smoke-grey, dense, without prominent exudates, sporulating. Colonies on MEA reaching 70-80 mm diam after 14 d, smoke-grey to pale olivaceous-grey, pale olivaceous due to abundant sporulation, reverse olivaceous-grey, woolly, fluffy, margins narrow, glabrous to feathery, colourless to white, sometimes radially furrowed and wrinkled, aerial mycelium abundant, fluffy, dense, high, pale olivaceous-grey, covering large parts of the colony surface, growth low convex, few prominent exudates formed, sporulating. Colonies on OA attaining 65-73 mm diam after 14 d, smoke-grey, pale olivaceous-grey to whitish due to aerial mycelium, greenish grey towards margin, reverse olivaceous-grey to iron-grey or leaden-grey, woolly-fluffy to felty, margin colourless to white, narrow, glabrous, aerial mycelium high, abundantly formed, fluffy to felty, whitish, growth flat to low convex, mostly without prominent exudates, sporulating.
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