492 INDEX TO AMERICAN BOTANICAL LITERATURE 
Showalter, W. J. Exploring the mysteries of plant life. Nat. 
Geogr. Mag. 45: 581-646. Je1924. [Lllust.] 
Shreve, E. B. Factors governing seasonal changes in tran- 
spiration of Encelia farinosa. Bot. Gaz. 77: 432-439. 16 
Je 1924. 
Shreve, F. Soil temperature as influenced by altitude and slope 
exposure. Ecology 5: 128-136, f. 1-6. “Ap” 29 My 
1924. 
Skottsberg, C. Zur Gefasspflanzen Flora Westpatagoniens. 
Géteborgs Vet.-Samh. Handl. IV. 28: 1-29. f. 1-7. 1924. 
Small, J. K. Onobrychis Onobrychis (L.) Rydb. in the eastern 
United States. Torreya 24: 48-49. 25 Je 1924. 
Speare, A. T., & Yothers, W. W. Is there an entomogenous 
fungus attacking the citrus rust mite in Florida? Science II. 
60: 41-42. 11 Jl 1924. 
Sprague, T. A. Proposed alterations in the international rules. 
Jour. Bot. 62: 196-198. JI 1924. 
Stancliff, J.O. The taros of Tahiti and the Marquesas. Am. 
ot. 30: 110-111. Jl 1924. 
Stell, F. Wither tip of limes in Dominica. Proc. Agr. Soc. 
Trinidad 24: 181-185. Ap-My 1924. 
Stewart, R.R. Alpine plants of Kashmir. Torreya 24: 41-44. 
pl. 3. 25 Je 1924. 
yore ~ L. Some farm weeds. How to know them—How to 
them. Wisc. Agr. Exp. Sta. Circular 171: 1-135. 
My 1 1924. [Illust.] 
Stout, A. B. The flowers and seed of sweet potatoes. Jour. 
N. Y. Bot. Gard. 25: 153-168. f. 1-3 + pl. 202. Je 1924. 
Stroman, G. N. Genetic relations of chlorophyll and antho- 
cyanin seedling characters in maize. Genetics 9: 91-123. 
. 7-2. “Mr” 11 Jl 1924. 
Sydow, H. Peirakiella Syd., eine neue Gattung aus der ver- 
wandtschaft der Diaportheen. Ann. Myc. 22: 230-234. 
Ff. I-§« 1924. 
Including Petrakiella insignis nov. gen. et. nov. sp. 
