INDEX TO AMERICAN BOTANICAL LITERATURE 413 
Hill, A.W. A visit to the West Indies. Kew Bull. Misc. Inf. IQI2: 
166-189. My 1912. 
Contains some information relating to the fungi and other plants of these islands. 
Hitchcock, A. S. Gramineae. In Jepson, W. L., A flora of Cali- 
fornia. 82-189. 30 Ap 1912. 
Includes keys to the tribes, genera, and species; one new species each in Aristida, 
Agrostis, Poa, and Glyceria; Notholcus Nash, gen. nov. 
Howe, M. A. The building of “coral”’ reefs. Science II. 35: 837- 
842. 31 My i912. 
Jepson, W. L. A flora of California. 65-192. 30 Ap 1912. 
Gnetaceae to Cyperaceae. The part on Gramineae contributed by A. S. Hitchcock. 
Johnson, R. H. The Malthusian principle and natural selection. 
Am. Nat. 46: 372-376. Je 1912. 
Kellerman, M. A method of preserving type specimens. Jour. 
Washington Acad. Sci. 2: 222, 223. 4 My 1912. 
Klugh, A. B. The algae of a marshy pond. Rhodora 14: 113-115. 
14 Je 1912. 
Koehne, E. Eine neue Einteilung der Kirschen, Prunus, Subgen. 
Cerasus. Wiss. Beilage Jahresb. Falk-Realgym. Berlin 1912: I-19: 
1912. : 
Macnamara, C. Poison ivy. Ottawa Nat. 26: 34-37. 27 My 1912. 
Malte, M. O. Variation in plant life, its biological significance and 
practical value. Ottawa Nat. 26: 26-28. 27 My 1912. 
A synopsis of a lecture delivered before the Ottawa Field Naturalists’ Club. 
Massee, G. Fungi exotici—XIII. Kew Bull. Misc. Inf. 1912: 189- 
191. 
Includes Entypa gigaspora Massee from Trinidad. 
Maxon, W. R. Studies of tropical American ferns—No. 3. Contr. 
U.S. Nat. Herb. 16: 25-62. pl. 18-34. 19 Je 1912. 
Meyer, R. Ueber Echinopsis multiplex Zucc. Monats. Kakteenk. 
22: 72-76. 15 My 1912. 
Phillips, F. J. & Mulford, W. Utah juniper in ceutral Arizona. 
U.S. Forest Serv. Circ. 197: 3-19. pl. 1,2 +f.1. 8 Je 1912. 
: Includes notes on injuries to the trees by Pyropolyporus texanus, Gymnosporan- 
sum gracilens, and G. Nelsoni. 
maley, F. Mendelian proportions aud the increase of recessives. 
Am. Nat. 46: 344-351. Je 1912. 
ord, S. J. Tier-like structure of some woods. Hardwood Record 
R 34: 38, 39. 10 Je 1912. [Illust.] 
eed, H. S., Cooley, J. S., & Rogers, J. T. Foliage diseases of the 
apple. Virginia Polytech. Inst. Agr. Exp. Sta. Bull. 195: 3-23. 
J, 2-13, F 1912. 
