Cordyceps /ˈkɔːrdɪsɛps/ is a genus of ascomycete fungi (sac fungi) that includes about 600 species. Most Cordyceps species are endoparasitoids, parasitic mainly on insects and other arthropods (they are thus entomopathogenic fungi); a few are parasitic on other fungi.[2] The generic name Cordyceps is derived from the Greek word κορδύλη kordýlē, meaning “club”, and the Greek word κεφαλή cephali, meaning “head”.[citation needed]
The genus has a worldwide distribution and most of the approximately 600 species[3] that have been described are from Asia (notably Nepal, China, Japan, Bhutan, Korea, Vietnam, and Thailand). Cordyceps species are particularly abundant and diverse in humid temperate and tropical forests.
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