INDEX TO AMERICAN BOTANICAL LITERATURE 255 
Downer, H. E. Forcing native plants. Jour. Internat. Gard. Club. 
2: 119-123. Mr 1918. [Illust.] 
Dunbar, J. Notes on Cotoneasters. Jour. Internat. Gard. Club 2: 
83-85. Mr 1918. [Illust.] 
Fairchild, D. Gardens for plant breeders. Jour. Heredity 9: 112-116. 
f. 5-8 Mr 1918. 
Faulwetter, R. C. The Alternaria leaf-spot of cotton. Phytopa- 
thology 8: 98-105. f. 7-3. Mr 1918. 
Fink, B. The distribution of fungi in Porto Rico. Mycologia 10: 58— 
61. Mr 1918. 
Fitzpatrick, H. M. Sexuality in Rhizina undulata Fries. Bot. Gaz. 
65: 201-226. pl. 3, 4. 15 Mr 1918. 
Frye, T. C. The rhacomitriums of western North America. Bryolo- 
gist 20: 91-98. pl. 20-23. 5 D 1917; 21: 1-16. pl. I-34... 35 Me 
1918. 
Fuller, G. D., & Bakke, A. L. Raunkiaer’s “life forms,” “leaf-size 
classes,”” and statistical methods. Plant World 21: 25-37. f. r. 
F 1918. 
Galloway, B. T. Some of the broader phytopathological problems in 
their relation to foreign seed and plant introduction. Phyto- 
pathology 8: 87-97. Mr 1918. 
Gruber, C.L. Herbs with fleshy fruits. Am. Bot. 24: 13,14. F 1918. 
Hanson, H. C. The invasion of a Missouri river alluvial flood plain. 
Am. Mid. Nat. 5: 196-201. pl. 1, 2. Mr 1918. 
Harper, E. T. The Clavaria fistulosa group. Mycologia 10: 53-57. 
pl. 3-5. Mr 1918. 
Harper, E.T. Two remarkable Discomycetes. Bull. Torrey Club 45: 
77-86. pl. 1-3. 7 Mr 1918. 
Underwoodia columnaris and Pustularia gigantea. 
Harper, R. M. Some dynamic studies of Long Island vegetation. 
Plant World 21: 38-46. f. 1, 2. F 1918. 
Harris, J. A., & Avery, B. T. Correlation of morphological variations 
in the seedling of Phaseolus vulgaris. Bull. Torrey Club 45: 109- 
119. 1 Ap 1918. 
Hendrickson, A. H. The common honey bee as an agent in prune 
pollination. Calif. Agr. Exp. Sta. Bull. 291: 215-236. f. 1-13. 
Ja 1918. 
