Elaphocordyceps jezoensis (S. Imai) G.H. Sung, J.M. Sung & Spatafora

Taxonomy
Authority: 
(S. Imai) G.H. Sung, J.M. Sung & Spatafora
Citation: 
Studies in Mycology 57: 37.
Classification: 
Elaphocordyceps, Ophiocordycipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Type Locality: 
Ishikari, Hokkaido prefecture, Japan
Morphology
Stroma: 

Stromata usually solitary, simple, 100-120 mm in length, attached to truffle of Elaphomyces often via rhizomorphs.  Stalk divided in two parts: above ground and below.  Above ground portion cylindrical, equal, sometimes irregularly curved, bright yellow.  Below ground portion paler in color, composed of entangled rhizomorphs.  Rhizomorphs whitish.  Fertile part obpyriform to clavate, 10-20 x 5-8 mm, internally yellow, externally olive-gray to black, ostiola visible.

 
Perithecia: 

Perithecia oblong with elongate neck, ostiola conically and acutely projecting, 700-720 x 200-250 um.

Asci: 

Asci cylindrical, 450-500 x 13-19 um, with prominent apical cap 7 um in diameter.

Ascospores: 

Disarticulating into partspores.  Partspores long, truncate or rounded, subfusoid, 16-50 x 3-4.5 um.

Ecology
Host or Substrate: 

on the truffle of Elaphomyces (Ascomycota, Fungi)

Known Distribution: 
Japan
References
Page Author: 
Alisha Owensby