504 INDEX TO AMERICAN BOTANICAL LITERATURE 
Wilson, T. The use of wild plants as food by Indians. Ottawa 
Nat. 30: 17-21. My 1916. 
Wolf, F. A. Citrus canker. Alabama Agr. Exp. Sta. Bull. 190: 91- 
100. pl. 1, 2+f. 1-6. My 1916. 
Wolf, F. A. Dissemination of bur clover leaf spot. Phytopathology 6 
301. Je 1916. 
Wolf, F. A. Neocosmospora vasinfecta Erw. Sm. on potato and adzuki 
bean. Phytopathology 6: 301. Je 1916. 
Wolf, F. A. Sclerotium Rolfsii Sacc. on Citrus. Phytopathology 6: 
302. Je 1916. : 
Wolfe, T. K. Fasciation in maize kernels. Am. Nat. 50: 306-309. 
fe Ine My 1086, 
Wuist, E. D. Sex and development of the gametophyte of Onoclea 
Struthiopteris. Physiol. Researches 1: 93-132. f. I-15. S$ 1913- 
Young, HH. D. Studies on the relation of cement dust to Citrus vegeta- 
tion. I. The effect on photosynthesis. Bioch. Bull. 5: 95-100. 
Mr 1916. 
Zahlbruckner, A. Neue Arten und Formen der Lobelioiden. II. 
Repert. Sp. Nov. 14: 133-142. 15 O 1915; III. Repert. Sp. Nov. 
14: 180-185. 31 D 1915. 
Includes nineteen new species in Centropogon (15), and Siphocamplyus (4). 
