63 

 separately, the gerin tubeS poniing fro» tihe ends of the segments. 

 Fotir days later there is formed a rich aerial growth of conidia bearing 

 hyjliae, 



C. Rolfsii Stev. ard Hall (261) on Paspaltun leave and 

 P. dj lata turn. Syn. Sclerotiton paspali Schv/, 



Sphacelia paspali Bo met 

 Spermadia paspali Fr. 

 As C. Rolfsii and C. msiaali differ only in their ascigerous 

 vfoidi was only recently found, it" is necessary to give here also the 

 synonyms given for C. pas pali, as. their similar sclerotia have been re- 

 ferred to indiscriminately under the same synonyms. 



Sclerotia yellow to gray, globose, roughened vAien mature, 

 about 3 ran. in diameter; sphairjd itun dull yellow; stipe filiform but 

 thicker than in C . paspali. 1 to 1.5 cm, long; peritiieric few in spheri- 

 dium and mostly upon extreme distal portion} cylindrical, ovate, 816 by ;^: 

 225\x', asci cylindrical, 375 by S|i; spores filiform, 260 to 275 by 0.5 

 to l\i. 



C. sesleriae StSger on Sesleria coerulea dnd possibly 



on 5. argentea . (225) 

 The Claviceps of Sesleria has been listed as C. parpurea . but 

 St'Sger, vdio made a careful study of the fungus and made a number of in- 

 oculation experiments with it, considers it as a distinct species which 

 he called C^ ses leri ae. It does not pass to any of the typical C_. 

 ■pur-purea hosts and is morphologically somevAiat different from the latter. 

 The conidia of C. purpurea are 7 by 3.5|i, the conidia o f C. microeephala 

 are 7 to 8 by 3 to 5|j,, whereas those of C. sesleriae are 10.5 to 14, by 

 3.5 to 5.3 to 7^. Besides a cross section of the sclerotium of C. ses- 

 leriae represents a different picture. In the middle of ihe iHhite mass of 

 the sclerotium there is a darker portion in a star-like form. 



