﻿486 Index to American Botanical Literature 



Shapovalov,'^M. Effect of temperature on germination and growth of 

 the common potato-scab organism. Jour. Agr. Research 4: 129- 



13?>- pi- 15 + f- I- 15 My 1915. 

 Shive, J. W. A three-salt nutrient solution for plants. Am. Jour. Bot 



2: 157-160. 13 My 1915. 

 Skottsberg, C. Notes on Pacific coast algae. I. Pylaiella postehiae 



n. sp., a new type in the genus Pylaiella. Univ. Calif. Publ. Bot. 6: 



153-164. pi. 17-J9. 7 My 1915. 

 Smith, E. F. A conspectus of bacterial diseases of plants. Ann. 



Missouri Bot. Gard. 2: 377-401. 17 My 1915. 

 Spaulding, P. Forest fungi of Bethel. Vermont Bot. and Bird Bull. 1 : 



24, 25. Ap 1915. 

 Spoehr, H. A. V^ariations in respiratory activity in relation to sunlight 



Bot. Gaz. 59: 366-386./. i-io. 15 My 1915. 

 Stewart, F. C, & Sirrine, F. A. The spindling-sprout disease of pota- 

 toes. N. Y. Agr. Exp. Sta. Bull. 399: 133-143- pl- iS- Mr 1915. 

 St. John, H. Elymus arenarius and its American representatives. 



Rhodora 17: 98-103. My 191 5. 



Includes Elymus sirigatus sp. nov. 

 St. John, H. Rumex persicarioides and its allies in North America. 



Rhodora 17: 73-83. pl. 11 j. 28 Ap 191 5. 

 Stone, G. E. The pin oak (Quercus palustris Muench.). Arborea i: 



28, 29. Au 1914. [Illust.] 

 Stuart, W. Potato breeding and selection. U. S. Dept. Agr. Bull. 195: 



1-35- pl. 1-16. 20 My 1915. 

 Studhalter, R. A., & Heald, F. D. The persistence of viable pycno- 



spores of the chestnut blight fungus on normal bark below lesions. 



Am. Jour. Bot. 2: 162-168. 13 My 1915. 

 Thompson, W. P. Preliminary note on the morphology of Gnetum. 



Am. Jour. Bot. 2: 161. 13 My 1915. 

 Townsend, C. O. Field studies of the crown-gall of sugar beets. U. S. 



Dept. Agr. Bull. 203: 1-8. pl. I, 2 +f. I. 30 Ap 1915. 

 Urban, I. Sertum antiUanum. I. Repert. Sp. Nov. 13: 444-459. 



31 D 1914. 



Includes new species in Piper (i). Phoradendrum (i), Coccoloba (4), Portulaca 

 (I), Magnolia (i). Phyllanthus (7), Crolon (6), and Rhamnidium (i). 

 Vaupel, F. Peruanische Kakteen. Monats. Kakteenk. 24: 154-157. 

 15 N 1914; 24: 161-177. 15 D 1914. [lUust.] 



