﻿596 Index to American botanical literature 



Blake, S. F. Steir actinia, a new genus of Compositae. Jour. Bot. 53: 



153-158. pl- 539- Je 1915- 

 Six new species are described. 

 Blake, S. F. Three new Perymeniums. Jour. Bot. 53: I35-I37- 



My 1915. 

 Blake, S. F. Trichospira verticillata (L.) Blake n. comb. Torreya 15: 



106. 29jei9i5. 

 Blodgett, F. M. Sweet pea powdery mildew. Phytopathology 5: 237. 



Au 1915- 

 Bonazzi, A. Cytological studies of Azotobader chroococcum. Jour. 



Agr. Research 4: 225-240. pl. 31-33- I5 Je I9i5- 

 Bose, J. C. Plant-autographs and their revelations. Smithsonian 



Inst. Ann. Rep. 1914: 421-443./. 1-18. 1915. 

 Brannon, M. A. The action of Salton Sea water on vegetable tissues. 



Carnegie Inst. Wash. Publ. 193: 71-78. pL 12-14. I9I5- 

 Britton, N. L. Further botanical exploration of Porto Rico. Jour. 



N. Y. Bot. Card. 16: 103-112. 5 Jl 1915. 

 Britten, N. L. Studies of West Indian plants— VI. Bull. Torrey Club 



42: 365-392. 29 Jl 1915. 



Includes descriptions of 43 new species in Coccolohis (5), Tabebuia (14), Anas- 

 iraphia (12), Cyperus (i), Psilocarya (i), Rynchospora (i). Cassia (i), Purdiaea (3). 

 Rheedia (i), Mayepea (i), Agalinis (i), Piriqueta (i) and Jacaranda (i). 

 Brown, F. B. H. Variation in the size of ray pits of conifers. Ohio Nat. 



15: 542-550./. 1-6. Je 1915. 

 Brown, W. H. The development of Pyronema confluens var. inigneum. 



Burlingame, L. L. The origin and relationships of the Araucarians. — I. 



Bot. Gaz. 60: 1-26. 16 Jl 1915;— II. Bot. Gaz. 60: 89-114. 14 



Au 1915. 

 Carleton, M. A. A serious new wheat rust in this country. Science 



11.42: 58,59. 9JI1915. 

 Chase, A. Impressions of the ferns of Porto Rico. Am. Fern Jour. 5: 



79-83. Jl 1915. 

 Clark, E. D. Note on the blackening of the leaves of the wild indigo 



{Baptisia tinctoria) and the isolation of a new phenol, Baptisol. 



Jour. Biol. Chem. 21: 645-660. Jl 191 5. 

 Cobb, M. V. Relationships of the white oaks of eastern North Am- 

 erica, with an introductory sketch of their phylogenetic history. 



Proc. Am. Philos. Soc. 54: 165-175. pl. 4-6. 7 Jl 1915. 



