Cordyceps nelumboides Kobayasi & Shimizu 1977

Taxonomy
Authority: 
Kobayasi & Shimizu
Citation: 
Some species of Cordyceps and its allies on spiders. Kew Bulletin, 31(3), p. 557-566.
Classification: 
Cordyceps s. l., Cordycipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Common Names: 
hasunomisetake (Japan)
Type Locality: 
Japan. Yamagata Prefecture, Kakurezawa of Shione River, Mogami-gun.
Morphology
Stroma: 

Mycelia superficial, covering the host, pulvinate, tomentose, white. Hyphae haline, 3-4 mm thick, multiseptate and irregularly bent. Phialides arising from the terminal hyphal cells, elongate, attenuate. Stromata arising from the back part of the host (abdomen), singular, erect, 5 mm high. Stipes cylindrical, fleshy, solid, 4 mm long, 0.4 mm thick, white, nearly hairless, without cortex. Medulla of hyaline hyphae 3.5 - 7.5 mm thick, longitudinal with a joined and interwoven arrangement. Hyphae of the upper surface irregularly joined, thin, 2.5-3 mm thick, multiseptate, verrucose. Fertile parts disc-shaped, 2 by 0.8 mm, yellowish, upper surface slightly convex, around 50 papillae, internal structure similar to that of stipe, upper surface with irregular, curved hyphae, 2.5 - 3 mm thick,

 
Perithecia: 

Perithecia entirely immersed, upright, fusifom to ellipsoid or naviculate, sometimes curved, 535-545 by 180-190 mm

Asci: 

Asci 400-450 by 5-6 mm, cap 4-4.5 mm in diameter.

Ascospores: 

Ascospores forming segments 5 by 1 mm

Anamorph
Genus: 
Hirsutella
Authority: 
Kobayasi and Shimizu (1977)
Citation: 
Kobayasi and Shimizu. 1977. Some species of Cordyceps and its allies on spiders. Kew Bulletin, 31(3), p. 557-566.
Notes: 

Kobayasi and Shimizu indicate that the anamorphic state for this fungus is a Hirsutella, although molecular evidence indicates a link to Akanthomyces.

Ecology
Host or Substrate: 

Spider, type attached to frond of Polystichum tripteron. Also found on elevated surfaces such as rock outcrops.

Notes
Commentary: 

Although phylogenetic relationships remain uncertain, preliminary molecular evidence suggest that this species is closely related to the genus Torrubiella, which also occurs on spiders. The species epithet indicates the similiarity of the fruit body to the receptacle of a lotus.

References
Page Author: 
Ryan Kepler