Seaver: The Hypocreales of North America 217 



16. Cordyceps iSARioiDES M. A. Curtis. ; Massee, Ann. Bot. 9 : 



36. 1895 



Stromata gregarious, springing from a dense, white mycelium 

 which almost entirely covers the host, 4-8 mm. high, about 1.5 

 mm. thick, cylinclric, almost smooth, even, ochraceous (when 

 dry), sometimes slightly curved; fertile portion 3-6 mm. long, 

 cylindric, obtuse, axial portion not thicker than the stem ; peri- 

 thecia subsuperficial, large, flask-shaped, with elongate necks, 

 ochraceous, crowded, spreading on all sicks at right angles to the 

 axis ; asci narrowly cylindric slightly capitate, the base narrowed 

 into a slender pedicel ; spores filiform, continuous, flexuous when 

 free, hyaline, 125-135 X i-5 mic, arranged in a parallel fascicle 

 in the ascus (pi. 54, f. 12). 



Growing from the remains of a moth. 



Type locality : United States. 



Distribution : Known only from the type locality. 



Illustrations : Ann. Bot. 9 : pi. 2, f. 36-39. 



17. Cordyceps agariciformia (Bolt.) Seaver, N. Am. Fl. 3: 



53- 19™ 



Sphaeria agariciformia Bolt. Hist. Fung. 130. 1789. 

 Clavaria capitata Holmsk. Topsv. 38. 1790. 

 Cordyceps capitata Link, Handbk. 3 : 347. 1833. 

 Torrubia capitata Tul. Fung. Carp. 3 : 22. 1865. 

 Cordyceps canadensis Ellis. & Everh. Bull. Torrey. Club 25: 501. 

 1898. 



Cordyceps nigriceps Peck, Bull. Torrey Club 27: 21. 1900. 



Stromata occurring singly or in clusters of several each, 3-8 cm. 

 high, consisting of a sterile stem and an ovoid or capitate, fertile 

 head ; stem uniform in thickness or a little thicker below, fibrous, 

 yellowish, becoming nearly black (in dried specimens), smooth; 

 head ovoid or agariciform, about 1 cm. in diameter, reddish- 

 brown, becoming nearly black, roughened by the slightly pro- 

 truding necks of the perithecia ; perithecia immersed, but promi- 

 nent; asci very long, cylindric, about 15 mic. thick; spores fili- 

 form, nearly as long as the ascus, finally breaking into segments, 

 subhyaline, fusoid or oblong-ellipsoid, with the ends rounded, 

 20-40 X 4-5 mic. 



Parasitic on Scleroderma (?) and Elaphomyces. 



Type locality : England. 



Distribution : Maine to Ontario and Florida. 



