572 INDEX TO AMERICAN BOTANICAL LITERATURE 
Ford, W. W., & Clark, E. D. A consideration of the. properties of 
poisonous fungi. Mycologia: 167-191. 14 Jl 1914. 
Foster, G. L. Indications regarding the source of combined nitrogen 
for Ulva Lactuca. Ann. Missouri Bot. Gard. 1: 229-235. My 1914. 
Fromme, F. D. The morphology and cytology of the aecidium cup. 
Bot. Gaz. 58: 1-35. pl. 1, 2+f. 1-8. 17 Jl 1914. 
Gates, R. R. Somatic mitoses in Oenothera. Ann. Bot. 26: 993-1010. 
pl. 86. O 1912. 
Griffiths, D. Illustrated studies in the genus Opuntia,—II. Ann. Rep. 
Missouri Bot. Gard. 20: 81-95. pl. 2-13. 2 Mr 1909. 
Includes eleven new species. 
Griggs, R. F. Observations on the edge of the forest in the Kodiak 
region of Alaska. Bull. Torrey Club 41: 381-385. f. z. 28 J] 1914. 
Hagstrém,O. New Potamogetons. Bot. Notiser 1908: 97-108. 1908. 
Includes Potamogeton ziziiformis from Brazil. 
Harper, E. T. The identity of Cantharellus brevipes and Cantharellus 
clavatus. Mycologia 5: 261-263. pl. 93-95. 4 O 1913. 
Harris, F. S. The effect of soil conditions on the tassels of maize. 
Science II. 40: 215, 216. 7 Au 1914. 
Harshberger, J. W. South Florida: a geographic reconnaissance. 
Bull. Geog. Soc. Philadelphia 10: 235-245. f. 1-10. O 1912. 
Heald, F. D. A method of determining in analytic work whether 
colonies of the chestnut blight fungus originate from pycnospores OF 
ascospores. Mycologia 5: 274-277. pl. g8-r1or. 40 1913. 
Hedgcock, G.G. Apple crown-gall and hairy-root in the nursery and 
orchard. Nat. Nurseryman 19: 1-6. Au 1910. 
Hedgcock, G. G. Prevention of apple crown-gall and hairy-root. 
Nat. Nurseryman 15: 192, 193. Jl 1907. 
Hill, J.B. The anatomy of six epiphytic species of Lycopodium. Bot. 
Gaz. §8: 61-85. f. 1-28. 17 Jl 1914. 
Hitchcock, A.S. Gramineae. In Urban, I., Nova genera et species V- 
Symbolae Antillanae 7: 166-170. 15 Je 1912. 
Includes Paspalum breve, Chloris leptantha, C. Suringari, and Eragrostis Ur- 
baniana, spp. nov. 
Hollick, A. A collection of fossil gums. Jour. N. Y. Bot. Gard. 8: 
163-165. f. 24, 25. Jl 1907. 
Hollick, A. The museum collection of fossil plants. Jour. N. Y. Bot. : 
Gard. 9: 214-226. f. 38, 39. D 1908. 
