258 INDEX TO AMERIC AN: BOTANICAL LITERATURE 
Harshberger, J. W. The old gardens of Pennsylvania. Gard. 
920): 78-80; 137-139; 257-258; 326-328; 44-46; 
120-123; 195-196; 255-256; 326-329; 374-377. 1921. 
[Illust.] 
Heimlich, L. F. Native plants of White County [Indiana]—III. 
Proc. Indiana Acad. Sci. 1920: 219-224. 1921. 
Hitchcock, A. S. Foral aspects of British Guiana. Ann. Rep. 
Smithsonian Inst. 1919: 293-305. pl. 1-1z2+/f. I-3. 1921. 
Hoffmann, R. Flora of Berkshire County, Massachusetts. 
Proc. Boston Soc. Nat. Hist. 36: 171-382. Mr 1922. 
Hollister, B. A. The relation between the common weeds of 
Michigan and those found in commercial seed. Michigan 
Acad. Sci. Rep 22: 187, 188. Au 1921. 
Holm, T. Studies in the Cyperaceae, XXXII. Carices aeroast- 
achyae: Phacotae nob. and Ternariae nob. Am. Jour. Sci. 
202? 322-329. ff. F-#. DD 1621. 
Hopkins, E F. The Botrytis blight of tulips. Cornell Univ. 
Agr. Exp Sta. Mem. 45: 315-361. pl. 33+f. 22-50. Au 1g2!. 
Hotson, J.W:. Sphizgnum used asa surgical aressing in Germany 
during the world war. Bryologist 24: 74-78, 89-96. f. 1-8. 
Py. Fo. 1022. 
House, H. D. Nomenclatorial notes on certain American 
~ plants—I. Am, Midl. Nat. 7: 126-135. S 1921. 
Includes Trianthella gen. nov. and new combinations in many genera. 
Howell, A. H. A biological survey of Alabama. N. Am. Fauna 
45: 1-88. pl. 1-11+ f. I-10. 1921. ~ 
Illick, U. S. Big trees in Pennsylvania. For. Leaves 18: 24, 
25. Ap 1921. [Illust.] 
Jackson, H. S. The Uredinales of Indiana III. Proc. Indiana 
Acad. Sci. 1920: 164-182. f. 7. 1921. 
jackson, H. S. The Ustilaginales of Indiana II. Proc. Indiana 
Acad. Sci. 1920: 157-163. 1921. 
Jepson, W. L. Flowers of Yosemite National Park. In Hall, 
A. F., Handbook 2f Yosemite National Park [California], 
247-267, pl 24-27 New York 1921. 
