Metacordyceps owariensis (Kobayasi) Kepler, G-.H. Sung, & Spatafora 2012

Taxonomy
Authority: 
(Kobayasi) Kepler, G-.H. Sung, & Spatafora
Synonymy: 
Ophiocordyceps owariensis. Studies in Mycology 57: 45.

Cordyceps owariensis Kobayasi, Bull. Biogeogr. Soc. Japan 9: 166. 1939.

Classification: 
Metacordyceps, Clavicipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Morphology
Stroma: 

Stromata solitary, straight, cylindrical to clavate, dark brown in color, 50-70 cm in length, arising from head of cicada nymph (Platypleura kaempferi).  Fertile area 30 - 35 mm in length, smooth connection to stipe, with 5 mm sterile tip that is acute, white, and glabrous.  Stipe often bifurcating at lower section, sometimes with tuberous or rhizomorphic appendages, surface glabrous, internally white, and 2 mm in diameter.   

 
Perithecia: 

Perithecia asymmetical in distribution, obliquely immersed, ampullaceous with a long neck, 460-530 x 200-270 um.

Asci: 

Asci cylindrical, 4-4.3 um in diameter, possessing a globose cap (2.4-2.8 um wide).

Ascospores: 

Disarticulating into partspores that are truncate, thinner than 1 um, 4.2-5.6 um in length.

Ecology
Host or Substrate: 

nymph of Platypleura kaempferi (cicada, Heteroptera)

Known Distribution: 
China, Japan
References
Page Author: 
Alisha Owensby