Elaphocordyceps subsessilis (Petch) G.H. Sung, J.M. Sung & Spatafora

Taxonomy
Authority: 
(Petch) G.H. Sung, J.M. Sung & Spatafora
Citation: 
Studies in Mycology 57: 37.
Classification: 
Elaphocordyceps, Ophiocordycipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Type Locality: 
Burbank, Tennessee and Cranberry, North Carolina
Morphology
Stroma: 

Stromata solitary, arising from Coleopteran larvae, buried in wood.   Stromata whitish, 45-150 mm in height, 1-5 mm thick, irregularly shaped, astipitate to irregularly stipitate, often bifurcating, constisting of loosely woven hyaline hyphae, bearing pads of perithecia which appear at surface of wood. 

 
Perithecia: 

Perithecia narrowly ovoid to conoid, psedudoimmersed, produced on a lateral pad, large, 800-1100 x 320-450 um, yellow to brown, with walls well differentiated.

Asci: 

Asci cylindrical, 430-600 x 3-4 um, apical cap 2 um in diameter.

 
Ascospores: 

Ascospores filiform, hyaline, disarticulating into partspores.  Partspores truncate, 3-6 x 0.5-1 um.

 
Anamorph
Genus: 
Tolypocladium
Species: 
inflatum
Authority: 
W. Gams
Citation: 
Persoonia 6(2): 185 (1971)
Ecology
Host or Substrate: 

on larva Scarabaeidae (Coleoptera)

Known Distribution: 
Japan, United States of America
Notes
Commentary: 

Hodge et al. (1996) treated C. facis Kobayasi & Shimizu as a synonym of C. subsessilis Petch.  Sung et al. (2007) transferred C. subsessilis Petch to the new genus Elaphocordyceps and followed Hodge et al.'s treatment of C. facis.  Additional research is needed, however, to clarify the species boundaries among the collections of C. subsessilis with respect to biogeography (e.g., Japan vs. North America), host affiliation (numerous families of Coleoptera) and habitat preference (host occurring within soil, dung or buried in wood).  Specimens have been reported from Tennessee, North Carolina, Michigan, New York, and Washington in the United States.

References
Page Author: 
Gi-Ho Sung, Alisha Owensby