Basionym: Cordyceps dipterigena Berk. & Broome, J. Linn. Soc., Bot. 14: 111 1875
Anamorph state: Hymenostilbe dipterigena Petch
Description:Species were found on the underside of leaves of forest plants and on twigs of living plants. Hosts are Diptera (true flies). Usually two stromata arise from the pleural membrane of the thorax, beneath the wings, 4-10 mm long, pale cream-yellow to orange-brown. Fertile head terminal, disk-like to subglobose, 1-1.5 mm high and 1.5-2.5 mm diam. with ridges, flattened apically. Perithecia arranged vertically with ostiole openings on the upper surface of the head, narrowly ovoid to obclavate 800-1000 x 200-300 μm. Asci cylindrical with a 2-3.5 μm thick perforated refractive cap, 450-600 x 4-6 μm. Ascospores parallel within the ascus, hyaline, filiform, breaking up into 64 one-celled part-spores. Part-spores cylindrical to fusiform, 6-12 x 1-1.5 μm. This species is rather common in Thailand. The specimens invariably have two perithecial clavae emerging from the thorax and one conidial synnema emerging from the abdomen. When the thoracic clavae first appear, these produce the Hymenostilbe state and later develop the terminal Ophiocordyceps fertile head.
References:Sung, G.-H., Hywel-Jones, N.L., Sung, J.-M., Luangsa-ard, J.J., Shrestha, B. & Spatafora, J.W. (2007). Phylogenetic classification of Cordyceps and the clavicipitaceous fungi. Studies in Mycology 57: 5-59.
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