INDEX TO AMERICAN BOTANICAL LITERATURE 215 
Fahmy, T. The production by Fusarium Solani of a toxic 
excretory substance capable of causing wilting in plants. 
Phytopathology 13: 543-550. 26 D 1923. 
Farwell, O.A. Notes on the Michigan flora—V. Pap. Michigan 
Acad. Sci., Arts & Lett. 2: 11-46. D 1923. 
Includes Lethea Cahnae, sp. nov. 
Fisher, G.C. A common name for Phacelia Purshii. Torreya 
20: £06. 4) 1623: 
Fulmer, E.I., & Grimes, M. The growth of yeasts on synthetic 
agar media. Jour. Bact. 8: 585-588. N 1923. 
Gaiser, L. O. Intracellular relations of aggregate crystals in 
the spadix of Anthurium. Bull. Torrey Club 50: 389-398. 
24 Ja 1924. 
Gates, F. C. Extensions of range in the Douglas Lake region, 
Cheboygan County, Michigan. Pap. Michigan Acad. 
Sci., Arts. & Lett. 2:47, 48. D 1923. 
Gerry, E. Five molds and their penetration into woods. Jour. 
Agr. Research 26: 219-230. pl. 1-4. 3 N 1923. 
Gleason, H. A. Botanical observations in northern Michigan. 
Jour. New York Bot. Gard. 24: 273-283. N 1923. 
Glock, W.S. Algae as limestone makers and climatic indicators. 
Am. Jour. Sci. 206: 377-408. N 1923. 
Gustafson, F. G. Studies on the hydrogen ion concentration of 
plant juices. Pap. Michigan Acad. Sci., Arts & Lett. 2: 
49-52. f. 3. D 1923. 
Haasis, F. W. Significance of a 255-year age class in an eastern 
Kentucky forest.. Jour. For. 21: 700-704. N 1923. 
Hale, J.D. The bars or rims of Sanio. Bot. Gaz. 76: 241-256. 
pl. 24-26 + f. 1-5. 10 D 1923. 
Hansen, A. A. Fringed gentian (Gentiana crinia). Nat. Mag. 
2: 357, 358, 363. D 1923. [Illust.] 
Hansen, T. S. Current growth in Norway pine. Jour. For. 
21: 802-806. D 1923. 
