T38 The Ohio Naturalist. 



8. Peronospora arthuri Farl. 



Conidial stage. 



On Onagra biennis (L. ) Scop. 



Columbus, Ohio. June 5, 1901. 



Coll. W. A. Kellerman. 



" P. arthuri 11. sp. Conidiopliores rather short and rigid, sev- 

 eral times dichotoinous. Tips rather short and rigid. Conidia 

 broadly ellipsoidal, obtuse, 22-26111111111. by igmmiii., slightly violet- 

 colored. Oospores large, dark brown, 34-42 nimni. in diameter, 

 exospore covered with short, blunt papillae." W. G. Farlow, 

 Botanical Gazette, 8:315. October, 18S3. 



9. Phyllosticta asiminae E. 8c K. 



On Asimina triloba (L,.) Dunal. 



West Alexandria, Preble Co., Ohio. July 4, 1901. 



Coll. W. A. Kellerman. 



" Phyllosticta asiminae E. & K. Spots pale brownish, of irreg- 

 ular shape (U-icm.), bordered 1)y a distinct, dark raised line; 

 perithecia subglobose, deeply immersed, their apices barely visible 

 on the upper surface of the leaf, scattered, 100-120 mmm. diam.; 

 spores yellowish with a slightly greenish tinge, obovate, 7-9 x 5-6 

 mmm." The American Naturalist, 17: 1 165. November, 18S3. 



10. Puccinia helianthi Schw. 



On Helianthus divaricatus I^. 



Columbus, Ohio. October 10, 1901. 



Coll. W. A. Kellerman and F. J. Tyler. 



"Puccinia helianthi Sz. P. minor orbicularis aggregata nigra, 

 sporidiis globoso-ovalibus bilocularibus longissime pedicellatis. 



(^ " In plurimus Helianthis vulgaris. Sporidia fusco-lutea, ped- 

 icello albo, pellucido." L. de Schweinitz, Synopsis Fuiigoruni 

 Carolinae Superioris (excerpta), p. 47. No. 495. (1S22). 



11. Puccinia helianthi Schw. 



On Helianthus mollis Lam. 



Sandusky, KrieCo., Ohio. vSeptember 17, 1901. 



Coll. W. A. Kellerman. 



Supplement to No. 10. 



