348 INDEX TO AMERICAN BOTANICAL LITERATURE 
Hallermeier, M. Ist das Hangen der Bliiten eine Schutzein- 
richtung? Flora 115: 75-101. 1922. 
Harms, H. Uber einige Carica-arten aus Siidamerika mit 
besondere Beriicksichtigung der peruanischen Arten. No- 
tizbl. Bot. Gart. u. Mus. Berlin-Dahlem 8: g1-100. 1 Ap 
1922. 
Includes 4 spp. nov. 
Harper, R. M. A botanical bonanza in Tuscaloosa County, 
Alabama. Jour. Elisha Mitchell Sci. Soc. 37: 153-160. 
pl. 28. Mr 1922. 
Harper, R. M. Geography of central Florida. Florida Geol. 
Surv. Ann. Rep. 13: 71-307. f. 7-43. 1921. 
Harshberger, J. W. Geographic names and terms of signi- 
ficance in plant geology and ecology. Bull. Geog. Soc. 
Philadelphia 20: 32-46. Ja 1922. 
Harvey, L.H. Yellow-white pine formation at Little Manister, 
Michigan. Bot. Gaz. 73: 26-43. f. I-6. 18 Ja 1922. 
Haskell, R. J. Phytophthora infestans on egg plant in the United 
Stutes. Phytopathology 11: 504, 505. 21 Mr 1922. 
Hayes, H. K., & Stakman, E.C. Resistance of barley to Hel- 
minthosporium sativum P. K. B. ee ey 11: 405- 
411. 16 F 1922 
eo Se. coe genera of the Clostridiaceae. Jour. Bact. 
1-38. Ja 
Includes 25 new genera. 
Hibbard, P. L. Some experiments on reclamation of infertile 
alkali soils by means of gypsum and other treatments. 
Soil Sci. 13: 125-134. F 1922. 
Higgins, B. B. Notes on the morphology and systematic re- 
lationship of Sclerotium Rolfsii Sacc. get Elisha Mitchell 
Sci. Soc. 37: 167-172. pl. zo. Mr 
Hoerner, G. R. Infection capabilities a: crown rust of oats. 
Phytopathology 12: 4-15. 10 Mr 1 
Hollick, A. Local flora notes—Staten Island. Torreya 22: 
1-3. Ja-F 1922. 
