INDEX TO AMERICAN BOTANICAL LITERATURE 161 
Cruz, D. da. A contribution to the life history of Lilium tenuifolium. 
I-37. pl. 1-7. Washington. 1915. 
Davis, A.M. A white-leaved hemlock in Vermont. Rhodora 19: 273. 
27 D 1917. 
Davis, B. M. A criticism of the evidence for the mutation theory of 
De Vries from the behavior of species of Oenothera in crosses and 
selfed lines. Proc. Nat. Acad. Sci. 3: 704-710. D 1917. 
Dearing, C. Muscadine grape breeding. Jour. Heredity 8: 409-424. 
f. ro-18 25 Au 1917. 
East, E. M., & Park, J. B. Studies on self- peediee The behavior 
of self-sterile plants. Genetics 2: 505-609. 
Edgerton, C. W. A study of wilt resistance in Si seed-bed. Phyto-. 
pathology 8: 5-14. f. 1-4. 24 Ja 1918. ; 
Elmore, C. J. Thomas County diatomite. Nebraska Geol. Surv. 7°: 
Bi, 52. dle re 35 Jota. 
Evans, A. W. Notes on New England Hepaticae——XIV. Rhodora 
19: 263-272. 27 D 1917. 
Fairchild, D. The grafted jujube of China. Jour. Heredity 9: 3-7. 
f. 1-4 + frontispiece. Ja 1918. 
Fernald, M. L. A remarkable colony of Bidens in Connecticut. 
Rhodora 19: 257-259. 27 D 1917. 
Bidens heterodoxa var. monardaefolia and B. heterodoxa var. agnostica. 
Gager, C.S. The near future of botany in America. Science II. 47: 
IOI-115. 1 F 1918. 
Giddings, N. J. Potato and tomato diseases. West Virginia Agr. 
Exp. Sta. Bull. 165: 1-24. f. 1-20.. S 1917. 
Grier, N. M. Sexual dimorphism and variation in Ginkgo biloba, L. 
Torreya 17: 225. 24 Ja 1918. 
Grisdale, J H. The black or stem rust of wheat. Canada Dept. Agr. 
Exp. Farms. Div. Bot. II. Bull. 33: 1-15. 1917. [Illust.] 
— illustration in the text is republished in color as Circ. No. 12 of the Central 
Exp. 
a a R.C. Rapid respiration after death. Proc. Nat. Acad. Sci. 
3: 688-691. D 1917. 
Hagstrém, J.O. Three species of Ruppia. Bot. Not. 1911: 137-144. 
J. 28. 1911. 
Halstead, B. D. Colors in vegetable fruits. Jour. Heredity 9: 18- 
23. Jai9 
Hansen, A. A. Petalization in the Japanese quince. Jour. Heredity 
9: 15-17. f. 5, 6. Ja 1918 
Hansen, A. A. A striking reproductive habit. Jour. Heredity 9: 85. 
f. 19. 28 Ja 1918. 
