Ophiocordyceps gracilioides (Kobayasi) G.H. Sung, J.M. Sung, Hywel-Jones & Spatafora 2007

Taxonomy
Authority: 
(Kobayasi) G.H. Sung, J.M. Sung, Hywel-Jones & Spatafora
Citation: 
Studies in Mycology 57: 43.
Synonymy: 

Cordyceps gracilioides Kobayasi, Sci. Rep. Tokyo Bunrika Daigaku, Sect. B, 5: 140. 1941.

Classification: 
Ophiocordyceps, Ophiocordycipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Morphology
Stroma: 

Stromata single, fruit body usually arising from the head of host (Larvae of Coleoptera). Stipe cylidrical, 4-9cm long and 2.1 wide, pale yellowish brown to pale reddish brown. Fertile head globose, pale rufous or yellowish reddish, 5.7 x 4.5 mm.

 
Perithecia: 

Perithecia immersed,  elongate- ampullaceous, 830-900 x 200-280 um.

Asci: 

Asci cylindrical, 600-700 x 6-6.5 um; ascus cap pronounced. 6-7 um in diameter, 4 um in height.

Ascospores: 

Ascospores filiform, hyaline. breaking into part-spores. secondary ascospores cylindrical, 6.3-8.5 x 1.2-1.5 um.

Anamorph
Genus: 
Paraisaria
Species: 
gracillioides
Authority: 
Chunru Li
Citation: 
Mycosystema 23(1): 165-166, 2004
Notes: 

Colonies with hillock or shrinkage at the center and with radiate veins on reverse on PPDA. Hyphae  hyaline, white. Conidiogenous cells phialidic, 5.5-27 x 2.0-3.9 um. conidia narrowly cylindrical to fusiform, one-celled, hyaline. smooth-walled, 3.0-14.5 x 1.0-2.0 um

Ecology
Host or Substrate: 

larva of Coleoptera

Known Distribution: 
China, Japan, Korea
Notes
Commentary: 

Collections of O. gracilioides often have a hyperparasite (in the genus Polycephalomyces) growing from the stromata.  This hyperparasite is another Cordyceps-like organism in the Clavicipitaceae.

References
Page Author: 
Mingjun Chen; Gi-Ho Sung