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Hypomyces laeticolor Tokiwa & Okuda, sp. nov. Teleomorph in nature: Subiculum vivid yellow (Munsell 5Y8/12) to brownish orange (Munsell 10YR7/6), covering the hymenial layers of host; hyphae pale yellow (Munsell 5Y9/2), 2.0-4.0 (-6.0) mm in width, parenchymatous, septate, thick-walled, KOH (-). Perithecia yellowish brown (Munsell 10YR6/8), ovoid to broadly ellipsoidal, (145-) 175-185 (-200) x (120-) 175-185 (-210) mm, superficially in group; papilla conical, (55-) 75-80 (-110) x (80-) 90-110 (-120) mm. Asci cylindrical, (82-) 104-106 (-112) x (4.0-) 5.0-6.0 (-6.5) mm, 8-spored, forming a basal stalk of (5.0-) 10.0-12.0 (-22.0) mm, slightly thickened at the apex which has an ostiole of 0.5-3.0 mm wide. Ascospores hyaline, fusiform, equally 2-celled, (14.0-) 15.5-17.0 (-20.0) x (3.5-) 4.5-5.0 (-5.5) mm, verrucose with minute warts of 0.5-1.0 mm in diam., apiculate at both ends; apiculi small, 0.5-1.0 (-2.0) mm in length, slightly rounded. Characteristics in cultures: Colonies on MEA, OA, or PDA growing rapidly reach 45-60 mm in diam. after 5 days at 25oC, showing floccose appearance, melon yellow or grayish orange (Munsell 10YR8/8-4) to brownish orange (Munsell 10YR7/4); margins uneven, odorless to fungoid odor, reverse orange (Munsell 10YR7/12), brownish orange (Munsell 10YR7/6), or brownish yellow (Munsell 10YR7/10); with well developed tangled aerial mycelium partly forming dense mycelial mat, on which a number of sclerotia produced, grayish yellow (Munsell 10YR8/8), turning out to be perithecia Hyphae hyaline, (1.5-) 4-5.5 mm wide, septate, thick-walled. Conidiophores born from aerial hyphae, semi-macronematous, septate, slightly thick-walled, irregularly branched several times, (1.5-) 2.0-2.5 (-6.0) mm, bearing conidiogenous cells at the apex. Conidiogenous cells born at the apex or laterally as a well-developed verticil of (3-) 4-6 (-9) on the conidiophores, hyaline, (14-) 22-34 (-50) x (1.0-) 2.0-2.5 (-3.0) mm, lanceolate, gradually tapering into the narrow apex of 0.5-1.0 (-1.5) mm in width. Conidia solitary, hyaline, (0-) 1-2 (-3) septate, broadly ellipsoidal to ellipsoidal, thin-walled, smooth, (9.0-) 12.0-16.0 (-21.0) x (3.0-) 5.0-6.0 (-10.0) mm. Chlamydospores born in a short chain on the side branches of substrate hyphae, hyaline, smooth, barrel-shaped, 6.0-9.0 (-13.0) mm wide.
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