^ 9 ^ 



whicsh finally appears in the form of a vrliite n^roelial growtli and toiovm under 



the rame, S-phacelia. seaetum ZS-v. The latter, in order to hibernate, passes 



into the hard sclerotia. form, which in turn develops into a Pyrenoiryce te . 



Following this classical piece of work KvUm cajne out with his wprKs on this 



suhject in which he repeated Tulasne»s work and fully completed the life 



history of Cla.viceps species known at that time. Since Ki3hn»s tiine till very 



recently the toclmical v/ork on ergot has heen of coirtparatively minor iniportance 



The recent work of St%er, however on pathogenicity and race specialization of 



C » purtJurea . and other species of tlie genus, has yielded contributions of 



iRiportsnce, 



CIAVICEPS PUEFUEEA 

 Hosts 



In the list of hosts of C_. .purpuroa . tha most coirraon and widely dis- 

 tributed species of Cliviceps and one v;ith a very vdde host range, are includer^- 

 tliose plants on which soii:e kind of ergot has been found, but for which there 

 is no esiperimental evidence to show the relation betv/een the ergot occurring 

 on them and £. purpurea . In cases whoro this species has been established 

 as the causs-1 organism by inoculation experiments, tlie host name is marked by 

 an asterisk. 



GBMiLimm 



5?ribe Andropogoneae 



•I 



Andropogon ischaeraum* 145 



•• sorghum var. hemba hemba 159 

 Tribe laniceae 



panicum miliacsum 145 



1 



Cesati, Eabenhorst, herb, n^rcol, Ed. II. Cent, I, no. 38. 



