INDEX TO AMERICAN BOTANICAL LITERATURE 211 
Gorman, M. V. Flora of Hamilton Mountain, Washington. Mazama 
6: 62-77. D 1920. 
Hahn, G. G., Hartley, C., & Rhoades, A. S. Hypertrophied lenticels 
on the roots of conifers and their relation to moisture and aeration. 
Jour. Agr. Research 20: 253-265. pl. 44-46. 15 N 1920. 
Hansen, A. A. Dodder. U.S. Dept. Agr. Farmers’ Bull. 1161: 1-21. 
f. I-10. Ja 1921. 
Harper, R. M. Water and mineral content of an epiphytic fern. 
Am. Fern Jour. 9: 99-103. 24 Ja 1920. 
Harris, J. A., & Scofield, C.S. Permanences in the plots of an experi- 
mental field. Jour. Agr. Research 20: 335-356. 1 D 1920. 
Harvey, L. H. Some phytogeographical observations in Lake County, 
Michigan. Am. Rep. Michigan Acad. Sci. 21: 213-217. Jl 1920. 
Hawkins, L. A., & Magness, J. R. Some changes in Florida grapefruit 
in storage. Jour. Agr. Research 20: 357-373. 1 D 1920. 
Hibbard, R. P., & Gershberg, S. The biological method of deter- 
mining the fertilizer requirement of a particular soil or crop. Ann. 
Rep. Michigan Acad. Sci. 21: 223, 224. Jl 1920. 
Higgins, B. B.. Morphology and life history of some Ascomycetes with 
special reference to the presence and function of spermatia. Am. 
Jour. Bot. 7: 435-444. pl. 30 +f. 1, 2. 12 Ja 1921. 
Holzinger, J. M. On our American form of Timmuia megapolitana 
Hedw. vont 23: 86-88. f. 1-5. 8 F 1921. 
With drawing by E. B. Chamberlain. 
Homans, G. M. Forest distribution in California. Rep. State 
Forester California 7: 58-85. 1919. {Ilust.] 
House, H. D. Notes on fungi, VI. New York State Mus. Bull. 
219, 220: 233-246. f. I-3. 1920. 
Includes Mycena Atkinsoni sp. nov. 
Howard, W. L., & Horne, W. T. Brown rot of apricots. California 
Agr. Exp. Sta. Bull. 326: 73-88. f. 1-5. Ja 1921 
Hurd, A. M. Injury to seed wheat resulting from drying after disin- 
fection with formaldehyde. Jour. Agr. Research 20: 209-244. 
pl. 36-41. 1 N 1920. 
Illick, J. S. Replacement of the chestnut. Jour. For. 19: 105-114. 
F 1921. 
Jagger, I. C. Sclerotinia minor n. sp., the cause of a decay of lettuce, 
celery, and other crops. Jour. Agr. Research 20: 331-333. 
pl.59 +f. 1. 15 N 1920. 
