Holotype:
THAILAND, Nakhon Ratchasima Province, Khao Yai National Park, 21 May 2008, K. Tasanathai, S. Mongkolsamrit, B. Thongnuch, P. Srikitikulchai, R. Ridkaew, A. Khonsanit, holotype BBH 38718, ex-type living culture BCC 30516.
Habitat:
Buried in the soil.
Host:
Termite.
Description:
Stroma solitary, simple, filiform, up to 15 cm long, 1 mm wide, orange-brown, ca 10 cm emerging above leaf litter, 5 cm buried in the soil. Asexual state (Hirsutella) produced at the terminal part of the stroma, ca 2 cm long, light brown to grey. Perithecia superficial covering middle part of stroma, globose to subglobose, 240-320 × 180-260 µm. Asci 8-spored, filiform, 92.5-175 × 5-6.5 µm with cap, 2 × 2 µm. Ascospores whole, filiform, 80-132.5 × 1-2 µm, with septate. Asexual state Hirsutella, phialides arising singly or laterally from the hyphae along the terminal part of the stroma, 9-15 × 3-5 µm. Conidia hyaline, fusiform, 4-5 × 2-3 µm.
Culture characteristics:
Colonies on PDA, attaining a diam of 27 mm after 20 d at 25 °C, mycelium sparse to abundant, grey in the middle to pale brown. Conidiogenous cells developing directly on the aerial mycelium, swollen towards the base, hyaline, smooth, tapering gradually towards the apex, which often forms a thin warty neck (1 µm), monophialidic or rarely polyphialidic 15–20 × 2–3 µm. Conidia aseptate, hyaline, smooth, arising from phialides at the apex of each neck, fusiform, 7–9 × 2–3 µm, with a mucous sheath.
Reference:
Tasanathai K, Noisripoom W, Chaitika T, et al. (2019). Phylogenetic and morphological classification of Ophiocordyceps species on termites from Thailand. MycoKeys 56: 101–129.
DOI: https://doi.org/10.3897/mycokeys.56.37636Species |
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