Holotype:
THAILAND, Phitsanulok Province, Ban Phaothai community forest, 3 Aug. 2016, K. Tasanathai, S. Mongkolsamrit, A. Khonsanit, W. Noisripoom, D. Thanakitpipattana, R. Somnuk, holotype BBH 41761, ex-type living culture BCC 82180.
Habitat:
Buried in soil.
Host:
On Meracantha sp.
Description:
Stromata solitary, greyish reddish brown to moderate brown, 80–100 mm long. Stipe slender, slightly curved, 0.8–1.2 mm wide. Rhizoids flexuous, 3–4 cm long buried under the ground, arising from head of larva of Meracantha sp. Ascomata on upper part of the stipe, cylindrical, strong yellowish brown, densely packed perithecia, 20–25 mm long, 1.5–2 mm wide. Perithecia completely immersed, pyriform, 395–420 × 190–250 μm. Asci cylindrical, 125–200 × 5–8 μm with asci caps, 3–5 × 5–7 μm. 
Ascospores whole, filiform, 130–210 × 2–3 with 5- or 6-septa. Asexual morph: Synnemata indeterminate, multiple, slender projections produced along the stipe below the ascomata, light brownish grey, or light yellow, up to 8 mm long, 80–120 mm wide. Conidiogenous cells hirsutella-like, solitary, arising individually from synnemata, cylindrical to ovoid basal portion, 29–33 × 4–5 μm, tapering to a narrow neck up to 25–28 μm long. Conidia hyaline, smooth-walled, fusiform, occasionally slightly curved, 9–15 × 3–8 μm with a mucous sheath. Some strains are found only producing their asexually reproductive form by producing abundant synnemata along the stipes.
Culture characteristics:
Colonies on PDA attaining a diam of 12–15 mm in 30 d, white, brownish orange in the centre of colonies, colonies reverse brownish orange. Conidiogenous cells monophialidic, arising from terminal region of the hyphae. Conidia hyaline, smooth-walled, fusiform, 9–13 × 2–4 μm, a mucous sheath observed in mature conidia.
Reference:
Mongkolsamrit S, Noisripoom W, Tasanathai K, et al. (2024). Uncovering cryptic species diversity of Ophiocordyceps (Ophiocordycipitaceae) associated with Coleoptera from Thailand. Fungal Systematics and Evolution14: 223–250.
DOI: https://doi:10.3114/fuse.2024.14.15Species |
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