60 



(\ iiiitTocephala, (Wallr.) (Plate 15) 



Keutrosporiutn nncrocepkalum, Wallr. Beitrage II, tab. 3. 

 Claviceps microcephala. Winter Die Pilze II, p. 147. 

 Exsicc. Rab. Herb. Myc. 430.— id. F. B. 2667,— Thum. F. Austr. 1087.— id. M. O. 699, 

 970, 998, 1798.— Linh. Fung. Hung. 69.— Erikss. F. Scand. 93.— Krgr. F. Sax. iz6, 

 127, 163, 164, 358.— Sydow M. March. 996, 1548, 2599. 



Differs from C- purpurea, principally in its smaller size (stem iili- 

 form, 10-16 mm. long), head gloliose, rufous, (| mm.), otherwise like 

 the preceding species. Grows from the ergot of Phn/f/rnitefi commitnin, 

 which, however, also proiiuces the first-mentioned species. Both these 

 ma}- be raised by cultiA'ation of their sclerotia, which may be lightly 

 covered with earth, kept properly moistened in a flower pot. 



COKDYOEPS, Fries. 



Syst. Mycol. II, p. 324. 



Stroma erect, clavate (mostly), simple or branched, sterile below, 

 bearing the perithecia (and often conidia) above. Perithecia bnried 

 (ir more or less nearly superficial. Asci cylindrical, with 8 filiform, 

 sL'ptate sporidia which finally sc])arate at the septa. 



The species of Cordyceps grow for the most pai't from dead 

 insects, but some also from fungi (species of Elaphomyces). They 

 abound in the tropical regions, but are found also in the temperate 

 zones. Their c^onidial stage is represented by the various species of 

 Imria. 



C. entomorrhiza (Dicks.) 



Sphaeria entomorrhiza, Dicks. PI. Cr. Brit. I, p. 22. 

 Kentrosporium granulatum, Wallr. Beitr. II, p. 166. 

 Cordiceps entomorrhizus, lyk. Hljdbk. Ill, p. 347. 

 Torrubia entotnnrrhiza, Tul, Sel. Carp. I, p. 61. 

 Cordyceps MenesteHdis, Mull. & Berk. Gard. Chron. 1878. 

 Exsicc. Rab. F. E. 1218? 



Carnose. Head subglobosc, golden yellow, becoining darker. 

 Stipe subcompressed, 2 inches long, and over. Asci cylindrical. 

 Sporidia filiform, hyaline, breaking up into cylindrical joints, or sect- 

 ions, 7-8 n long. 



Growing from larvffi of insects. Carolina (Ravenel). 



C. armeniaca. B. & 0. Journ Linn. Soc. I, p. 159, tali. 1, fig. 1. 



Apricot-colored, sti])e flexuous, rather short, 8 mm. long. Head 

 subglobose, i-ather pale, roughened by the perithecia. Asci elongated, 

 subinflated at the apex. Sporida linear, immature. 



On dung of birds, pi-obably from tlie remains of insc'cts eaten, 

 Carolina (Ravenel). 



