INDEX TO AMERICAN BOTANICAL LITERATURE 533 
Stevens, O. A. Plants of Manhattan and Blue Rapids, Kansas, with 
dates of flowering—I. Am. Mid. Nat. 5: 71-87. My I9I7. 
Stevenson, J. A. Diseases of vegetable and garden crops. Jour. Dept. 
Agr. Porto Rico 1: 93-117. Ap 1917. 
Stevenson, J. A. Report of the pathologist. Report Board Comm. 
Porto Rico Agr. §: 35-74. 1917. 
Stewart, F.C. Witches-brooms on ipratd trees. Phytopathology 7: 
185-187. 2 Je 1917. 
‘Stone, G. E. Apple diseases. Massachusetts State Board Agr. Circ. 
12: 1-19. f. I-10... ¥9%4. 
Stout, A. B. Variation in the moss pink, Phlox subulata. Jour. N. Y. 
Bot. Gard. 18: 75-83. pl. 193. Ap 1917. 
Tanaka, T. New Japanese fungi. Notes and translations—I. Myco- 
logia 9: 167-172. 9 Je 1917. 
Taylor, N. Flora of the vicinity of New York. Sci. Mo. 4: 548-553. 
fit. Je wot. 
Thaxter, R. New Laboulbeniales, chiefly dipterophilous American 
species. Proc. Am. Acad. Arts. & Sci. 52: 649-721. My 1917. 
Includes 2 new genera Nycteromyces and Ilytheomyces and new species in Rickia 
(2), Nycteromyces (1), Stigmatomyces (37), Ilytheomyces (9), and Laboulbenia (4). 
Theissen, F. Annotacdes 4 myxoflora ase aca Broteria 12: 13-31: 
i~7; Ap 1914. 
Includes the new genus Phaeoschiffnerula and fifteen new species in various 
gen 
Wetted, C. Les Myxomycétes du Brésil, connus jusquici. Broteria 
ag. 2-86. Fike TAP IOLS, 
Tottingham, W.E. On the relation of chlorine to plant growth. Johns 
Hopkins Univ. Circ. 293: 217-221. Mr 1917. 
Transeau, E.N. The algae of Michigan. Ohio Jour. Sci. 17: 217-232. 
My 191 
Oedogonium americanum sp. nov. is described. 
Trelease, S. F. The relation of the concentration of the nutrient solu- 
tion to the growth of young wheat plants in water-cultures. Johns 
Hopkins Univ. Circ. 293: 225-227. Mr 1917. 
Trelease, S. F. A study of salt proportions in a nutrient solution con- 
taining chloride as related to the growth of young wheat plants. 
Johns Hopkins Univ. Circ. 293: 222-225. Mr 1917. 
Trelease, S. F., & Free, E.E. The effect of renewal of culture solutions 
of the growth of young wheat plants in water-cultures. Johns 
Hopkins Univ. Circ. 293: 227, 228. Mr 1917. 
Trelease, W. Naming American hybrid oaks. Prot. Am. Philos. 
Soc. 56: 44-52. pl. 1-3. 3 Ap 1917. 
