518 INDEX TO AMERICAN BOTANICAL LITERATURE 
Wieland, G. R. Cycadean monoecism. Am. Jour. Sci. IV. 8: 164. 
Au 1899. 
Wieland,G.R. A study of some American fossil cycads. PartI. The 
male flower of Cycadeoidea. Am. Jour. Sci. IV. 7: 219-226. f. I, 2+ 
pl. 2-4. Mr 1899; Part II]. The leaf structure of Cycadeoidea. 
Am. Jour. Sci. IV. 7: 305-308. pl. 7. Ap 1899; Part III. The female 
fructification of Cycadeoidea. Am. Jour. Sci. IV. 7: 383-391. f. 
1-8 + pl. 7-10. My 1899. 
Wilcox, E. M., & Stone, R. E. Directions for the control of Nebraska 
plant diseases. Ann. Rep. Nebraska Agr. Exp. Sta. 22: 25-63. IF 
1909. 
Wilson, G.W. The Polyporaceae of Fayette, lowa. Proc. Iowa Acad. 
Sci. 16: 19-22. 1910. 
Whetzel, H.H. Fiber rot or rust of ginseng roots. Special Crops 146, 
147. Au 1909. 
Whetzel, H. H. End rot or fiber rot of seedlings. Special Crops 
143-145. f. 1, 2. Au 1909. 
Wylie, R.B. The flora of Iowa Rock. Proc. Iowa Acad. Sci. 16: 99- 
1or. 1910. [Illust.] 
The flora of a small rocky island in Puget Sound, Washington. 
