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Mycologia, 96(4), 2004, pp. 929-934.
© 2004 by The Mycological Society of America

Hirsutella uncinata, a new hyphomycete from Australia


Keith A. Seifert 1
Hillary Boulay

     Biodiversity Theme (Mycology and Botany), Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, 960 Carling Ave., Ottawa, Ontario, K1A 0C6 Canada

Hirsutella uncinata, collected on follicles of Hakea sp. in New South Wales, Australia, is described as a new anamorph species. The fungus produces stiff, erect, verticillate conidiophores with up to 10 whorls of hooked, phialidic conidiogenous cells that have rough-walled necks. The conidia are subfusiform, flattened on one side and produced in groups of 2–3 in a dense slimy ball at the end of each phialide. Parsimony analysis of aligned internal transcribed spacer rDNA sequences suggests that H. uncinata is closely related to the Cordyceps sinensis complex (Clavicipitaceae, Hypocreales), which includes species with morphologically similar anamorphs.

Key words: Clavicipitaceae, Cordyceps sinensis, internal transcribed spacers, phylogenetics, taxonomy






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