INDEX TO AMERICAN BOTANICAL LITERATURE 163 
Murrill, W. A. A new paradise for botanists. Torreya 16: 251-257. 
f.. 1-3. 16 Ja 1917. 
Nash, G. V. Caiasetum scurra. Addisonia 1: pl. 32. 30 D 1916. 
Nash, G. V. Rhus hirta dissecta. Addisonia 1: pl. 37. 30 D 1916. 
Nowell, W. Fungous and bacterial diseases. West Indian Bull. 16: 
17-30. 1916. 
Nowell; W. Rosellinia root diseases in the Lesser Antilles. West 
Indian Bull. 16: 31-71. f. 1-72. 1916. 
Osner,G. A. Leaf smut of timothy. Cornel! Agr. Exp. Sta. Bull. 381: 
187-230. pi. 17+f. 45-58. O 1916. 
Osterhout, W. J. V. Specific action of barium. Am. Jour. Bot. 3: 
481, 482. 23 D 1916. ! 
Pease, A. S. List of plants on Three Mile Island. Pteridophyta and 
Spermatophyta. Appalachia 12: 266-276. Jl 1911. 
Pennell, F. W. Dasystephana porphyrio. Addisonia 1: pl. 35. 30D 
Pittier, H. Preliminary revision of the genus Inga. Contr. U.S. Nat. 
Herb. 18: 173-223+i-xi. pl. 81-105. 300 1916. 
Includes descriptions of thirty-nine new species. 
Pope, M. N. The mode of pollination in some farm crops. Jour. Am. 
Soc. Agron. 8: 209-227. 1 Au 1916. 
1916. 
[Popenoe, O.] The best papaws. Jour. Heredity 8: 21-33. f. 9-15. 
27 D 1916. 
Prichard, R. P., & Bailey, I. W. The significance of certain variations 
in the anatomical structure of wood. Forest. Quart. 14: 662-670. 
F, Fo t9,' 36 
Pritchard, F. J. Some recent investigations in sugar-beet breeding. 
Bot. Gaz. 62: 425-465. f. 1-51. 18 D 1916. 
ey, F. Dry grassland of a high mountain park in northern 
Colorado. Plant World 19: 249-270. f. 1-6. S 1916. 
f. 1. D 1916. 
Raymond, R. I. An ideal series for Thallophyte-Bryophyte study. 
Am. Bot, 22: 83-91. Au 1916. 
Reed, G.B. The relation between oxidase and gatalase in plant tissues. 
Bot. Gaz. 62: 409-412. f. r. 16 N 1916. 
Reed, G. B. The separation of oxidase reactions from the catalase 
reaction. Bot. Gaz. 62: 303-310. f. 1-3. 17 O 1916. 
Rigg, G. B. A summary of bog theories. Plant World 19: 310-325, 
O 1916. 
