298 INDEX TO AMERICAN BOTANICAL LITERATURE 
Mackenzie, M. . Phyto-phenology in its application to the plants of the 
Philadelphia neighborhood. Contr. Bot. Lab. Univ. Pennsylvania 
3: 288-427. pl. 6,7. 1911. 
Meyer, R. Echinopsis obrepanda K. Sch. und Echinopsis Fiebrigtt 
Giirke. Monats. Kakteenk. 22: 33-37. 15 Mr 1912. 
Meyer, R. Uber Echinocactus pilosus Gal. Monats. Kakteenk. 22: 
37-42. 15 Mr 1912. [Illust.] 
Mitchell, G. F. The cultivation and manufacture of tea in the United 
States. U.S. Dept. Agr. Plant Ind. Bull. 234: 5-40. pl. 1, 2 +f. 
I-9. 15 F 1912. 
Includes description of tea plant, Thea sinensis. 
Morris, E. L. An apparently new record for Rubus Chamaemorus 
Linnaeus. Torreya 12: 88. 17 Ap 1912. 
Nash, G. V. The succulent plant collections. Jour. N. Y. Bot. Gard. 
13: 56-58. Ap 1912. 
Nelson, A. Contributions from the Rocky Mountain Herbarium. X. 
New plants from Idaho. Bot. Gaz. 53: 219-228. 15 Mr 1912. 
Includes descriptions of 14 new specie 
Pfeiffer, W.M. The morphology of Leitneria floridana. Bot. Gaz. 53: 
189-203. pl. 18-20. 15 Mr 1912. 
Piper, C. V. Agricultural varieties of the cowpea and ieamediately 
related species. U.S. Dept. Agr. Plant Ind. Bull. 229: 5-160. pl. 
I-12. 29) 1612. 
Vigna unguiculata. 
Pollard, C. L. Conservation, the national issue. Proc. Staten T. Assoc. 
3: 128-143.:>15 F 1982. 
Pretz, H. W. Some noteworthy plants of Lehigh County, Pa. ll 
tonia 4: 6-10. Mr 1912. 
Reed, G. M. Infection experiments with the powdery mildew * 
wheat. Phytopathology 2: 81-87. Ap 1912 
Rivas, D. Bacteria and other fungi in relation to the soil. Contr. 
Bot. Lab. Univ. Pennsylvania 3: 243-274. I9II. 
Rydberg, P. A. Epipactis vs. Peramium. Torreya 12: 89, 9% a 
Ap I912.- 
Rydberg, P. A. Phytogeography and its relation to taxonomy and 
other branches of science. Torreya 12: 73-85. 17 AP ight | 
Sands, W. N. An account of the return of vegetation and the reviva 
of agriculture in the area devastated by the Soufriére of St. Vincent 
in 1902-3. West Ind. Bull. 12: 22-33. 15 Ja 1912. [Illust st] 
Schneider, A. Pharmacal plants and their culture. California State 
Board Forest. Bull. 2: 3-175. 1912. 
