Eupenicillium idahoense Paden 1971

Malus domestica.

Australia (Queensland); British Isles; Egypt; Kazakhstan (Almaty oblast); Syria.

Conidiophores. Usually strictly simple, occasionally one-stage-branched with 1 divergent, branch-like metula developing low on the stipe or with 2 apical metulae, rarely ramigenous with 2 (-3) divergent branch-like metulae arising singly at different levels from the stipe; stipes variable in length, 20-250 × 1.5-2.5 μm, with apices enlarged up to 5-6 μm, but in reduced structures less swollen, smooth-walled or slightly roughened; metulae when present, 7-25 × 1.8-2.5 μm. Conidiogenous cells. Typically parallel, sometimes later more divergent, in clusters of 8-15, 7-11 × 1.7-2.5 μm, consisting of a cylindrical base and a short, slightly narrowed neck, occasionally longer, up to 16 μm, and tapering very slowly into the apex; sometimes with single cross-septa; occasionally 1 or 2 of them proliferating. Conidia. In loose columns, slightly ellipsoidal to subglobose, 2.2-3.2 × 1.8-2.8 μm, with walls smooth or nearly so. Ascomata. Tan, pinkish cinnamon to brown, sometimes dark brown, at first very hard, 100-380 μm diam., ripening within 6-8 (-13) weeks; ascogenous hyphae consisting of relatively short and wide cells, with strongly recurved branches. Asci. 7-8.5 × 6-7 μm, borne both singly and in helicoidal chains of 3-5 cells. Ascospores. Lenticular, 2.8-3.5 × 1.8-2.5 μm, with 2 close equatorial ridges, 0.2-0.5 μm wide, and with smooth to roughened valves as seen under the light microscope, but showing warts, and small ridges when viewed with SEM.