Sabahriopsis eucalypti Crous & M.J. Wingf., Persoonia 34: 205 (2015)
Index Fungorum Number: IF 812448; MycoBank Number: MB 812448; Facesoffungi Number: FoF 15769
Etymology – Name reflects the host genus Eucalyptus, from which the species was isolated.
On OA. Mycelium consisting of hyaline, smooth, branched, septate, 2 – 2.5 μm diam hyphae that contain hyphopodia-like structures. Conidiophores solitary, erect, subcylindrical, hyaline to pale olivaceous, straight to flexuous, 1–4-septate, 50–130 × 2–3 μm. Conidiogenous cells integrated, subcylindrical, terminal and intercalary, hyaline to pale olivaceous, 25–30 × 2–3 μm, containing several erumpent, refractive denticles, apical and basal on conidiogenous cell, 1 μm diam, 1 μm tall, rim somewhat darkened. Conidia solitary, pale brown, granular to guttulate, obovoid, straight to somewhat curved, apex subobtuse, base obconically truncate, (1–)2-septate, median cell encased in flared mucoid appendage up to 3 μm diam, apical cell appearing smooth, but median and basal cell finely verruculose, hilum with cylindrical marginal frill, 1 μm diam, 0.5–1 μm long, widest in middle of basal cell, (12–)22–26(–32) × (3.5–)4–5(–6) μm.
Culture characteristics — Colonies spreading, with sparse aerial mycelium, and feathery margins, reaching 8 mm diam after 1 mo at 25 °C. On MEA surface dirty white, reverse honey. On PDA surface and reverse dirty white. On OA surface honey.
Typus – Malaysia, Sabah, on leaf spots of Eucalyptus brassiana (Myrtaceae), May 2014, M.J. Wingfield (holotype CBS H-22235, culture ex-type CPC 24957 = CBS 139906;
Figure 1 – Sabahriopsis eucalypti. conidiophores and conidia; Scale bars = 10 μm.