Seaver: The Hypocreales of North America 209 



Perithecia scattered, becoming subsuperficial. 



Stromata very long and slender, 5 cm. high. 



14. C. Sphingum. 



Stromata 1 cm. or less high. 



Stromata effuse or erect ; perithecia be- 

 coming spathulate when dry. 

 Stromata erect ; perithecia flask-shaped. 



15. C. Cockerellii. 



16. C. isarioides. 



Sclerotia formed in fungi. 

 Stromata agariciform. 

 Stromata clavate. 



17. C. agariciformia. 



18. C. parasitica. 



I. Cordyceps militaris (L.) Link, Handbk. 3: 347. 1833 

 Clavaria militaris L. Sp. PI. 1182. 1753. 



Ramaria farinosa Holmsk. Danske Vid-Selsk. Skr. II. 1 : 299. 

 1 781. 



Clavaria granulosa Bull. Herb. Fr. pi. 496, f. 1. 1790. 

 Clavaria farinosa Dicks. PI. Crypt. Brit. 2 : 25. 1790. 

 Isaria farinosa Fries, Syst. Myc. 3: 271. 1832. 

 Kentrosporium militare Wallr. Beitr. Bot. 166. 1844. 

 Torrubia militaris Tul. Fung. Carp. 3 : 6. 1865. 



Sclerotia formed in the pupae of insects, compact, white ; co- 

 nidial stage {Isaria) rising from the sclerotium, consisting of a 

 slender stalk, and a white, floccose, feather-like head ; stromata at 

 maturity consisting of a sterile stem and fertile, clavate head, 

 usually simple but more rarely forked or branched, the whole often 

 attaining a height of 4-5 cm., but often much shorter, bright- 

 orange ; perithecia thickly scattered or crowded, for the most 

 part immersed with the necks protruding, or superficial (espe- 

 cially in weathered specimens) ; asci cylindric ; spores filiform, 

 nearly as long as the ascus, many-septate, breaking apart at the 

 septa, giving rise to numerous subellipsoid segments 2-3 mic. long 



On pupae buried or partially buried in the ground. 

 Type locality : Europe. 



Distribution : Massachusetts to North Dakota and Virginia ; 

 4 also in Europe. 



Illustrations: Bull. Herb. Fr. pi. 496, f. 1; Fl. Dan. pi. 

 057, /. 1; Sow. Engl. Fungi pi. 60; pi. 308. 



Specimens examined: Connecticut, Earle; Iowa, Seaver; 

 Massachusetts, Morris; North Dakota, Seaver (Isaria stage 

 only) ; New York, Murrill, Seaver; New Jersey, Ellis; Pennsyl- 

 vania, Small; Vermont, Burlingham ; Virginia, Murrill. 



(pl- 53, /• JO, a)- 



