Ophiocordyceps termiticola (BBH5634, BCC 1920) A stroma of fungus emerging from termite B part of stroma showing perithecia C perithecia D ascus E ascospore F phialides with conidia on synnema G conidium H colony on PDA at 20 d obverse and reverse I phialides with conidia on PDA J conidium K–O scanning electron micrographs of phialides with conidia on PDA P colony on PSA at 20 d obverse and reverse Q phialides with conidia on PSA R colony on SDYA/4 at 20 d obverse and reverse S phialides with conidia. Scale bars: 2 cm (A); 1 μm (B, K, O); 100 μm (C); 15 μm (D); 8 μm (E); 5 μm (F, G); 7 mm (H, P, R); 3 μm (I, J, L, M, N, Q, S).