INDEX TO AMERICAN BOTANICAL LITERATURE 653 
Fedde, F. Neue Arten aus der Verwandtschaft der Corydalis aurea 
Willd. von Nord-Amerika.—IX. Repert. Sp. Nov. 12: 37-39» 
20 Mr 1913. : 
Includes Corydalis pachyloba sp. nov. 
Fenn, W. O. Salt antagonism in gelatine. Proc. Nat. Acad. Sci. 2: 
534-538. f. 7-3. S 1916, 
Fenn, W. O. Similarity in the behavior of protoplasm and gelatine. 
Proc. Nat. Acad. Sci. 2: 539-543. f. 4. S 1916. 
Fernald, M. L. The representatives of 7risetum spicatum in eastern 
America. Rhodora 18: 195-198. 1S 1916. 
Flynn, N. F. One afternoon’s botanizing. Vermont Bot. & Bird 
Club Joint Bull. 2: 19. Ap rgr6. 
Ford, W. W. Plant poisons and their antibodies. Centralb. Bakt. 
Erste Abt. 58: 129-162. 4 Jl 1913; 193-222. 11 Jl 1913. 
Fromme, F. D. Facultative heteroecism (?) of Peridermium harknessit 
and Cronartium quercus. Phytopathology 6: 411, 412. O 1916. 
Frost, W. D., & Bachmann, F. Another use of the double-plate method. 
Science II. 44: 433, 434. f. I, 2. 22S 1916. 
Gates, R. R. On the mendelian interpretation of Oenothera crosses. 
Rhodora 18: 198-201. 15S 1916. 
Graff, P. W. Philippine Basidiomycetes—II. Philip. Jour. Sci. 9: 
(Bot.) 235-254. pl. 2. 1914. 
Includes new species in Lepiota, Tricholoma, Lentinus, Agaricus, Siropharia, and 
Coprinus. 
Gregory, C.T. Studies on Plasmopara viticola. Rep. Internat. Cong. 
Viticulture 1915: 126-150. pl. 1-5. San Francisco. Je 1916. 
Harper, R. M. The fern grottoes of Citrus County, Florida. Am. 
Fern Jour. 6: 68-81. pl.5. S 1916. 
Harper, R. M. An overlooked environmental factor for species of 
Prunus. Rhodora 18: 201-203. 15 1916. 
Harris, J. A., & Lawrence, J. V. The cryoscopic constants of expressed 
vegetable saps as related to local environmental conditions in the 
Arizona deserts. Physiol. Researches 2: 1,2. Jl 1916. 
Abstract. 
Hibbard, R. P., & Harrington, O. E. Depression of the freezing-point 
in triturated plant tissues and the magnitude of this depression as 
related to soil moisture. Physiol. Researches 1: 441, 442. Au Igi6. 
