316 INDEX TO AMERICAN BOTANICAL LITERATURE 
Bryan, M. M. A spurless variety of Habenaria psycodes (L.) Sw. 
Ann. Missouri Bot. Gard. 4: 37-42. pl. 5. F 1917. 
Buckner, G. D., & Kastle, J.H. The growth of isolated plant embryos. 
Jour. Biol. Chem. 29: 209-213.. Mr 1917. 
Bunzell, H. H., & Hasselbring, H. The supposed action of potassium 
permanganate with plant peroxidases. Bot. Gaz. 63: 225-228. 
15 Mr 1917. 
Burlew, F. E. Crepis nana. Bull. S. Calif. Acad. Sci. 16: 13. Ja 
1917. [Illust.] 
Burnham, S.H. The ferns of the Lake George flora, N. Y—II. Am. 
Fern Jour. 6: 97-105. D 1916;—III. Am. Fern Jour. 7: 12-15. 
Mr 1917. 
Candolle, C. de. Piperaceae Philippinenses novae vel nuper repertae. 
Philip. Jour. Sci. 11: (Bot.) 207-225. S$ 1916. 
Twenty-four new species in Piper are described. 
Child, H. W. Some traits of Epipactis in Vermont. Rhodora 19: 38. 
14 F 1917. 
Clark, L. The acidity of marine algae. Puget Sound Marine Sta 
Publ. 1: 235, 236. 1916. 
Copeland, E. B. Growth phenomena of Dioscorea. Philip. Jour. Sci. 
11: (Bot.) 227-241. S 1916. 
Coulter, J. M. Botany as a national asset. Science II. 45: 225-231. 
9 Mr 1917. 
Cromwell, R. O. Fusarium-blight or wilt disease of the soybean. 
Jour. Agr. Research 8: 421-440. pl. 95 +f. £19 Mr-agt7: 
Davidson, A. Additions to the flora of Los Angeles County. Bull. 
S. Calif. Acad. Sci. 16: 14. Ja 1917. 
Davidson, A. Collinsia monticola Davidson, sp. nov. Bull. S. Calif. 
Acad. Sci. 16: 13, 14. Ja 1917. [Illust.] 
Doubt, S. L. The response of plants to illuminating gas. Bot. Gaz. 
63: 209-224. f. I-6. 15 Mr IQI7. 
East, E. M. The bearing of some general biological facts on bud- 
variation. Am. Nat. 51: 129-143. Mr1 IQI7. 
Evans, A.W. Notes on North American Hepaticae—VII. Bryologist 
20: 17-28. pl. 2. Mr 1917. 
Includes Cololejeunea subcristata sp. nov. 
Faulwetter, R. C. Dissemination of the angular leafspot of cotton. 
Jour. Agr. Research 8: 457-475. f. 1, 2. 19 Mr 1917. 
