INDEX TO AMERICAN BOTANICAL LITERATURE gI 
Hoem, T. Studies in the Cyperaceae—XXXIV. Am. Jour. 
Sci. V. 3: 260-268. f. 1-14. . Ap 1922. 
Holzinger, J. M. Grimmia Brandeget Aust. Bryologist 25: 
16,17. 27: Ap. 1942, 
Hopkins, E. F. Varietal susceptibility of the yellow bell-flower 
apple to cedar rust. Phytopathology 12: 190-191. f. 1. 
29 Je 1922. 
Hosseus, C. C. Flora Argentina.—estudios comparativos sobre 
la vegetacion de las provincias de la Rioja y de San Juan. 
Bol. Acad. Nac. Cien. Cordoba 26: 5-160. f. 1-28. 1921. 
Hungerford, C. W. Leafroll, mosaic and certain other related 
diseases in Idaho. Phytopathology 12: 333-139. pl. 9. 
6 Je 1922. 
Illick, J. S. The birches. Am. For. 28: 355-364. Je 1922. 
[Illust. 
Jackson, H. S. New or noteworthy rusts on Carduaceae. 
Mycologia 14: 104-120. 6 Je 1922. 
Includes 5 new species in Puccinia. 
Jeffrey, E. C., Longley, A. E., & Penland, C. W. T. Polyploidy, 
polyspory, and hybridism in the angiosperms. Science 55: 
517, 518. 12 My 1922. 
Jones, L. H., & Shive, J. W. Influence of wheat seedlings upon 
the hydrogen ion concentration of nutrient solutions. Bot. 
Gaz. 73: 391-400. My 1922. 
Judd. C.S. Chaulmoogra oil plantation. Hawaiian For. & Agr. 
19: 65, 66. Mr 1922. [lllust.] 
Kaiser, G. B. Little journeys into mossland—VI. The mosses 
of tree-trunks. Bryologist 25: 14-16. 27 Ap 1922. 
Killip, E. P. New passifloras from Mexico and Central America. 
Jour. Washington Acad. Sci. 12: 255-262. 4 Je 1922. 
-Includes 11 new species. 
Kincer, J. B. The relation of climate to the geographical dis- 
tribution of crops in the United States. Ecology 3: 127-133. 
26 Ap 1922. ; re. 
