Rhodoscypha verruculosa M. Zeng, Q. Zhao & K.D. Hyde, sp. nov. FIGURE 20
MycoBank number: MB; Index Fungorum number: IF; Facesoffungi number: FoF 12604.
Saprobic on soil. Sexual morph: Apothecia 3 mm broad, 3 mm high, solitary, cupulate, deeply concave, pubescent, sessile. Receptacle cupulate, receptacle surface pink, covered tomentum, margin conspicuous, undulate. Hymenium coral pink, slightly darker in color than receptacle surface. Ectal excipulum 55−115 µm, composed of textura angularis to textura globulosa, 19−24 × 13−17 μm cells, pinkish, with up to 250 μm long, up to 15 μm broad hairs, hyaline, thick-walled, strongly refractive tapering to an obtuse end. Medullary excipulum 30−90 μm, composed of textura intricata, 5−8 µm broad hyphae, hyaline to pinkish. Paraphyses 4−8 µm broad, with pinkish pigmented, filiform, apex enlarged, 7−10 µm broad. Asci 475−520 × 16−25 μm, 8-spored, cylindrical, operculate, inamyloid. Ascospores [20/1/1, in H2O] (34.1−) 36.1−42.4 (−45.8) × (14.0−) 15.2−17.1 (−17.2) μm (Q = 2.11−2.70, Q = 2.43±0.16), hyaline, fusiform, uniseriate or overlapping, equilateral, rarely slightly inequilateral, mostly biguttulate, occasionlly uniguttulate, ornamented with visible warts in the light microscope. Asexual morph: Unknown.
FIGURE 20. Rhodoscypha verruculosa. a–c Typic mature specimens. d Excipulum. e Ectal excipulum. f Asci and paraphyses in Congo red. g, h Asci in Melzer reagent. i Apex of ascus. j Apex of ascus in Congo red. k–n Ascospore. Scale bars: b, c = 500 μm. d–h = 100 μm. i, j = 10 μm. k–n = 20 μm.