Elaphocordyceps japonica (Lloyd) G.H. Sung, J.M. Sung & Spatafora 2007

Taxonomy
Authority: 
(Lloyd) G.H. Sung, J.M. Sung & Spatafora
Citation: 
Sung, G.-H.; Hywel-Jones, N.L.; Sung, J.-M.; Luangsa-ard, J.J.; Shrestha, B.; Spatafora, J.W., 2007, Studies in Mycology 57: 37
Classification: 
Elaphocordyceps, Ophiocordycipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Type Locality: 
Mikawa, Japan
Morphology
Stroma: 

Stromata simple or branched, solitary or caespitose, 70 - 110 mm in height, developing directly from the truffle of Elaphomyces species.  Fertile area cylindrical to clavate, usually not differentiated from the stipe, 15-35 x 4-8 mm , deep olive-gray, internally yellowish, minutely to densely mammose, osioles dark in color.  Stipe cylindrical, almost equal, 2-7 mm in diameter, stuffed or hollow, sometimes longintudinally grooved, smooth velvety, dark olive brown or black. 

 
Perithecia: 

Perithecia ovoid, 500-700 x 200-350 um, immersed with ostioles slightly protruding. 

Asci: 

Asci cylindrical, 250-400 x 7-10 (14) um, with a hemispherical thickening of the wall at the apex, apical caps 6-7 um in diameter.

Ascospores: 

Ascospores hyaline, filiform, disarticulating into partspores.  Partspores cylindrical, ellipsoid, 10-18 x 2.5-4 um.

Ecology
Host or Substrate: 

truffle genus Elaphomyces (Ascomycota)

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

Has been found growing on Elaphomyces japonicus and E. granulatus, among other species.

References
Page Author: 
Alisha Owensby