Cordyceps cylindrica Petch

Taxonomy
Authority: 
Petch
Citation: 
Trans. Brit. Mycol. Soc. 21: 46. 1937
Classification: 
Cordyceps s. l., Ophiocordycipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Morphology
Stroma: 

Stroma single, arising from head of host, fleshy, 3-6cm  long,  composed of simple stipe and clavate fertile part. Mycelium  covering whole of host. Stipe cylindric, soft, fleshy, 2-3cm long, 2-2.6 mm thick. Fertile head enlarged, cylindric clavate, 1-3 cm long, 3.7-4 mm thick.

 
Perithecia: 

Perithecia deeply immersed, elongated flask-shaped with long neck, 1100-1267 x 200-300 um, wall 10 um thick, with the ostiodes opening on the surface of the head.

 
Asci: 

Asci  8-spored, filiform, hyaline, at least 375 um long and 4.5-5.5 um diam.

 
Ascospores: 

Ascospores filiform, hyaline, multiseptate with indistinct septation, easily breaking into hyaline part-spores. Part spores 3.0-3.8 x 1.0-1.5 um, cylindrical with truncate ends.

Anamorph
Genus: 
Nomuraea
Species: 
atypicola
Notes: 

Phialides borne on conidiophore or on small side branches, conidiophores 6.0-12.0 x 2.3 um,  Conidia in dry chains, 2.6-6.4 x 1.5-2.6 um, purple-grey.

Ecology
Host or Substrate: 

adult trapdoor spider (Araneae)

Known Distribution: 
China, Japan, Thailand, Trinidad and Tobago, United Kingdom
Notes
Specimens Examined: 

NHJ2347

References
Page Author: 
Mingjun Chen, Gi-Ho Sung