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    Ophiocordyceps nutans (Pat.) G.H. Sung, J.M. Sung, Hywel-Jones & Spatafora Mycol. 57: 45 (2007)

    Basionym: Cordyceps nutans Pat. (1887)

    Synonyms:

    Ophiocordyceps nutans (Pat.) G.H. Sung, J.M. Sung, Hywel-Jones & Spatafora Mycol. 57: 45 (2007)

    Anamorph state: Hymenostilbe nutans Samson & H.C. Evans

    Description:

    Specimens were found in the leaf litter or buried in soil. Hosts are hemipteran stink bugs. Stroma solitary on small hosts, multiple on larger specimens (body size 20-30 mm), 50-90 mm long, 400-800 µm across, marasmioid black or blackish brown, becoming red 8-12 mm below the fertile head which was red, salmon pink or orange-yellow, 6-17 x 3-5 mm. Perithecia immersed, hyaline-walled, oblique with a curved neck, 550-800 x 130-200 µm. Ostioles visible on the surface. Asci cylindric, up to 780 µm x 7-8 µm diam., 8-spored. Ascospores break easily into 64 part-spores. Part-spores cylindric or slightly barrel-shaped, ends blunt, 9.5-15 x 1.5-2 µm. In culture the colonies on PDA are slow growing attaining a diam. of 5-10 mm in 2 mo at 25°C. Ophiocordyceps nutans has been found throughout Thailand from Doi Inthanon National Park in the North to Hala Bala National Park on the Malay border.

    References:

    Hywel-Jones, N.L. (1995). Cordyceps nutans and its anamorph a pathogen of Hemipteran bugs in Thailand. Mycological Research 99: 724-726. 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.

    Locality: Kaeng Krachan National Park,
    Province: Chiang Rai, Chiang Mai, Phetchaburi,
    Country: Thailand

    Search this species at:
    THAILAND BIORESOURCE RESEARCH CENTER