Fig. 28.

Teleomorph of Hypocrea alutacea. a. Fresh young stroma. b–g. Dry stromata (b. immature, f. upper part of fertile region, g. laterally fused stromata). h, i. Stroma surface showing ostiolar dots (h. dry, i. in 3% KOH after rehydration). j. Surface hyphae in face view. k. Surface cells close to ostiole in face view. l. Cortical and subcortical tissue in section. m. Ascus ring. n. Crozier. o. Perithecium in section. p, q. Subperithecial tissue (p. featuring angular cells, q. featuring hyphae). r–u. Asci with ascospores (t, u. in cotton blue/lactic acid). a, m, n, s, u. WU 29177. b. K 142759. c, d, h, i, l, o–q, t. WU 8690. e, f, j, k. K 155403. g, r. IMI 47042. Scale bars: a = 2 mm. b, d, e = 5 mm. c, f, g = 3 mm. h, i = 0.5 mm. j–l, p–u = 10 μm. m, n = 5 μm. o = 25 μm