— 196 — 



area. The fungus and consequently the disease appeared on the 

 unsprayed plat. He obtained only 164 pounds of small unmark- 

 etable tubers of poor flavor. The disease did not appear on the 

 sprayed plat on leaves or tubers ; and 346 pounds of large tubers 

 of fine flavor were produced. 



II.— *ANTHRACNOSE OF CURRANTS. 

 *Gloeosporium Ribis, (L,ib.), Mont, and Desm. 



This note is published, on 

 what is apparently a com- 

 paratively new trouble in the 

 garden, to call attention to it, 

 and aflbrd information that 

 would seem important at the 

 present time, although it will 

 appear that our knowledge 

 is meager enough. Investi- 

 gations on it begun last sum- 

 mer, will be continued dur- 

 ing the coming season. 



The spots appear (Fig. 3) 

 chiefly on the upper surface 

 but within the tissues of the 

 leaves of certain species of 

 Fig. 3.— Leaf (reduced H) from the White the wild curraut, and Certain 



Dutch Currant. The venation shown in detail varieties of cultivated snerips 

 on the right hand together with the Leaf-blight, varieUCS OI CUllU atCQ species. 



{Gioeosporium Ribis). It was first reported from 



America by the Rev. M. J. Berkeley in "Notices of North 

 Amer. Fungi" Grevillea II, p. 83, (Dec, 1873). It is there given 

 as occurring in Connecticut on leaves of Ribcs nigrum, — a culti- 

 vated currant, — collected by Charles Wright, and in " New Eng- 

 land, by Russell." Since then it has been found by Dr. C. H. 

 Peck, on leaves of the Wild Fetid Currant {R. pro stratum.) It 

 was found abundantly the past sea.son on the leaves of the White 

 Dutch currant growing in the University garden, while the Black 

 Naples and the Crandall (Rides aureiuii) growing next the White 



*The common spotting of bean-pods, a disease of the Grape, one of 

 Raspberry and Blackberry leaves and other diseases are caused by various 

 species of Gioeosporium. Mycologists are adopting the name Anthracnose 

 for all Gioeosporium diseases, hence the above name. 



