INDEX TO AMERICAN BOTANICAL LITERATURE 303 
Faull, J. H. Fomes officinalis (Vill.) a timber destroying fungus. 
Trans. Royal Canadian Inst. Toronto 11: 185-209. pl. 18-25. 
1916. 
Fernald, M. L. The North American Littorella. Rhodora 20: 61, 62. 
9 Ap 1918. 
Fernald, M.L. The validity of Oxalis americana. Rhodora 20: 76-78. 
9 Ap 1918. 
Gericke, W. F. Effects of rest and no-rest periods upon growth of 
Solanum. Bot. Gaz. 65: 344-353. 15 Ap 1918. 
Green, M. L. Echeveria setosa. Curt. Bot. Mag. IV. 14: pl. 8748. 
Mr ro18. 
A plant from Mexico. 
Greenman, J. M. Monograph of the North and Central American 
species of the genus Senecio—Part II. Ann. Missouri Bot. Gard. 5: 
37-108. pl. 2, s. I 
Includes Senecio molinarius sp. nov. 
Hall, F. H. Poor ventilation injures stored potatoes. N. Y. Agr. 
Exp. Sta. Bull. 436: 1-11. pl. r- O17 
Halsted, B. D. Reciprocal breeding in tomatoes. Jour. Heredity 9: 
169-173. Ap 1918. 
Hansen, A. A. A national floral emblem. Science II. 47: 365-367. 
12 Ap 1918. 
Henry, J.K. A new variety of Rubus parviflorus. Torreya 18: 54, 55. 
f. it. 40 Ap 1918. 
Hermessen, J. L. A journey on the Rio Zamora, Equador. Geog, 
Rev. 4: 434-449. f. 1-7. D 1917. 
Contains some information of botanical interest. 
Hicken, C. M. Una Aracea curiosa Felipponia. An. Soc. Cien. Argen- 
tina 84: 240-244. I917. 
Hodgson, R.W. Black smut of figs. Month. Bull. State Comm. Hort. 
Calif. 7: 188, 189. f. 28. Ap 1918. 
Holway, E. W. D. Infected grass seeds and subsequent rust develop- 
ment. Phytopathology 8: 169. 30 Ap 1918. 
Horsford, M. Dr. Cyrus Guernsey Pringle. The Vermonter 23: 12- 
14. 1918. 
Howe, M. A. The marine algae and marine spermatophytes of the 
Tomas Barrera Expedition to Cuba. Smithsonian Misc. Col. 68": 
1-13. 9 Ap 1918. [Illust.] 
Includes Phormidium Hendersonti sp. nov. 
