Otidea subleporina M. Zeng, Q. Zhao & K.D. Hyde, sp. nov. FIGURE 19
MycoBank number: MB; Index Fungorum number: IF; Facesoffungi number: FoF 12603.
Saprobic on soil. Sexual morph: Apothecia 5−8 mm broad, 2.5−3 cm high, scattered to gregarious, ear-shape, split, stipitate. Stipe 3−5 mm broad, ca. 2 cm long, terete, solid, brown, nearly smooth, basal with white to cream tomentum and mycelium. Receptacle surface brown, mostly concolorous with hymenium, margin mostly deeply split on one side. Hymenium brown, nearly smooth. Stipitipellis 75−130 µm broad, of textura angularis to textura globulosa, brownish to brown, composed of 20−30 × 15−19 μm cells, with hypha-like hairs, abundant close to base, composed of 3−7 µm wide, hyaline to brownish, septate. Ectal excipulum 60−120 µm, composed of textura angularis to textura globulosa, 14−19 × 11−14 μm cells, yellow to brownish, some outer globose cells irregularly loosely aggregate to a pruinose-like surface, rarely with swollen hypha-like hairs, 4−9 μm, sometimes with yellow-brown resinous exudates. Medullary excipulum 150−300 μm, composed of textura intricata, 4−8 µm broad hyaline to brownish hyphae, sometimes with yellow-brown resinous exudates at septa. Paraphyses 2−3 µm broad, with yellow pigmented, filiform, exceeding the asci, mostly deeply curved at the apex, sometimes with up to 3 low notches close to apex. Asci 155−175 × 10−12 μm, 8-spored, cylindrical, operculate, inamyloid. Ascospores [20/1/1, in H2O] (9.1−) 10.3−12.8 (−13.8) × (5.8−) 6.1−7.9 (−9.8) μm (Q = 1.38−1.89, Q = 1.66±0.15), ellipsoid, hyaline, uniseriate, equilateral, rounded at the ends, uniguttulate to biguttulate, smooth. Asexual morph: Unknown.
FIGURE 19. Otidea subleporina (HKAS ***, holotype). a–d Typic mature specimens. e Stipitipellis. f Ectal excipulum. g Asci and paraphyses. h–l Asci (l Ascus in Congo red.). m Apex of ascus. n Apex of ascus in Congo red. o–t Ascospores. Scale bars: e, f = 100 μm. g–l = 50 μm. m–t = 10 μm.