430 INDEX TO AMERICAN BOTANICAL LITERATURE 
Nash, G. V. Cotoneaster Simonsit. Addisonia 3: 21, 22. pl. 91. 
29 Je 1918. 
Nash, G. V. Hamamelis japonica. Addisonia 3: 35, 36. pl. 98. 29 
Je 1918. 
Nash, G. V. Sobralia sessilis. Addisonia 3: 39, 40. pl. 100. 29 Je 
1918. 
Nash, G. V. Symphoricarpos albus laevigatus. Addisonia 3: 27. 
pl. 94. 29 Je 1918. 
Nelson, J. C. Western malodorous plants. Am. Bot. 24: 42-45. 
My 1918. 
Newcombe, F. C., & Bowerman, E. A. Behavior of plants in unventi- 
lated chambers. Am..Jour. Bot. 5: 284-294. 6 J! 1918. 
Orton, W. A. Breeding for disease resistance in plants. Am. Jour. 
Bot. 5: 279-283. 6 Jl 1918. 
Overholser, E. L. Color development and maturity of a few fruits 
as affected by light exclusion. Proc. Soc. Am. Hort. Sci. 1917: 
73-85. Mr 1918. 
Pammel, L.H. The extermination of the common barberry to prevent 
crop leakage due to stem rust. Iowa Conservation 2: 4-8. Mr 
1918. [Illust.] 
Pierce, R.G. Notes on peridermiums from Ohio. Need of pathologi- 
cal viewpoint in nursery inspection. Phytopathology 8: 292-294. 
15 Jl 1918. 
Piper, C. V. New plants of the Pacific northwest. Proc. Biol. Soc. 
Washington 31: 75-78. 29 Je 1918. 
Epilobium cinerascens, Vaccinium coccineum, Mertensia bella, Castilleja indecora, 
Grindelia andersonii and Hoorebekia curvaia, spp. nov., are described. 
Pittier, H. New or noteworthy plants from Colombia and Central 
America. 7. Contr. U.S. Nat. Herb. 20: 95-132. pl. 7 + f. 44-62. 
Ig 
inenaltin descriptions of 32 new species in various genera. 
Potter, A. A. The effect of disinfection on the germination of cereal 
seed. Phytopathology 8: 248, 249. 11 My 1018.. 
Record, S. J. Significance of resinous tracheids. Bot. Gaz. 66: 61-67. 
f. 1-5. 135 Jl 1918. 
Reddick, D. Lightning injury to grape vines. Phytopathology 8: 
298. Je 1918. | ' 
Rehder, A. The Bradley bibliography 5: i—xxxii + I-1008. 191 8. 
Roberts, R. H. Winter injury to cherry blossom buds. Proc. Am. 
Soc. Hort. Sci. 1917: 105-110. Mr 1918. [Illust.] 
