Elaphocordyceps delicatistipitata (Kobayasi) G.H. Sung, J.M. Sung & Spatafora 2007

Taxonomy
Authority: 
(Kobayasi) G.H. Sung, J.M. Sung & Spatafora
Citation: 
Studies in Mycology 57: 37.
Synonymy: 

Cordyceps delicatistipitata Kobayasi, Bull. Natn. Sci. Mus. Tokyo 5: 79. 1960 (as C. ‘delicatostipitata’).

Classification: 
Elaphocordyceps, Ophiocordycipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Type Specimen: 
TNS-F-230293
Type Locality: 
Yanaba-zawa, Ooizawa, Yamagata prefecture, Japan
Morphology
Stroma: 

Stomata solitary, simple, thin, fleshy, up to 100 mm long, attached via rhizomorphs to truffle of the genus Elaphomyces.  Fertile part spherical or ovoid, brownish-yellow maturing to olive-brown, connection to stipe abruptly distinct, 2-2.5 mm in diameter, 2-3.5 mm long, with ostiola protruding.  Stipe divided into above and below ground sections.  Lower half white, filiform.  Upper half cylindric, slender, fibrillous, longitudinally grooved, somewhat twisted, browninsh-yellow fading to white toward ground surface, 30-50 mm long, 0.5 -0.7 mm thick.

 
Perithecia: 

Perithecia ordinally immersed, ovoid, 480-540 x 225-255 um.

Asci: 

Asci cylindric, 320-460 x 10-13 um, cap 8 um in diameter.

Ascospores: 

Breaking into partspores.  Partspores large, 18-28 x 3-5 um, cylindrical, truncate or rounded at ends.

Ecology
Host or Substrate: 

on truffle Elaphomyces (Ascomycota)

Known Distribution: 
Japan
References
Page Author: 
Alisha Owensby, Hiroki Sato, Gi-Ho Sung