Cordyceps gunnii Berk.

Taxonomy
Authority: 
Berk.
Citation: 
J. Bot., London 7: 577. 1848.
Synonymy: 

Cordyceps gunnii (Berk) Berk. Land. J. Bot.. 7: 572-580

Classification: 
Cordyceps s. l., Ophiocordycipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Morphology
Stroma: 

Stromata growing from the head of Lepidoptera larva, usually simple, rarely branched, 10-90 x 5-6 mm.  Stipe flexuous, white to white-grey. Fertile  head cylindrical or obtuse, white to cream-yellow,  differentiated from stipe, 8-22 x 5-8 mm.

 
Perithecia: 

Perithecia completely immersed, elongated or ampuliform, with the ostiodes opening on the surface of the head, 700-910 x 200-300 um.

 
Asci: 

Asci 8-spored, hyaline, cylindrical, 200-450 x 6.5-7.5 um. possessing a prominent apical cap, 7.5 width.

 
Ascospores: 

Ascospores filiform, hyaline, multiseptate with indistinct septation. easily breaking into hyaline part-spores, partspores truncate, cylindrical, 4-6.5 x 2-3 um.

 
Anamorph
Genus: 
Paecilomyces
Species: 
gunnii
Authority: 
Z.Q Liang
Citation: 
Acta Mycologia Sinica 4: 163, 1985
Notes: 

Phialides swollen basal portion, tapering into a long thin neck, 7-19 x 2-3 um. Conidiophores manily arising from aerial hyphae, short , about 6o um. Conidia ellipsoidal oval or fusiform, 1.6-4.8 x 1.2-3.5 um, spinose, in divergent chains.

Ecology
Host or Substrate: 

on larva of Lepidoptera

Known Distribution: 
Australia, China
References
Page Author: 
Mingjun Chen, Gi-Ho Sung