INDEX TO AMERICAN BOTANICAL LITERATURE 531 
Shamel, A. D. Bud selections as a means of improving Citrus and 
other fruits. Ann. Rep. Am. Breeders’ Assoc. 8: 497-503. 1912. 
Sharp, L.W. Maturation in Vicia (preliminary note). Bot. Gaz. 57: 
531. 19 Je 1914. 
Shreve, F. A guide to the salient physical and vegetational features 
of the vicinity of Tucson, Arizona. I-11. 1913. 
Smith, L.H. Occurrence of natural hybrids in wheat. Ann. Rep. Am. 
Breeders’ Assoc. 8: 412-414. 1912. 
Smith, J. D. Polypetalae (pars). In Pittier, H., Primitiae florae 
costaricensis. I-223. San José. 1907. 
Somes, M. P. Notes on the flora of Johnson County, Iowa. Proc. 
Iowa Acad. Sci. 20: 27-101. 1913. 
Spaulding, P. The damping-off of coniferous seedlings. Phytopath- 
ology 4: 73-88. pl. 6 +f. 12, 2. 23 Ap 1914. 
Spaulding, P. New facts concerning the white-pine blister rust. U.S. 
Dept. Agr. Bull. 116: 1-8. 24 Je 1914. 
Spegazzini, C. Mycetes argentinenses. An. Mus. Nac. Nat. Hist. 
Buenos Aires 24: 167-186. 1913. [Ilust.] 
Sprague, T. A. Hypericum Ascyron. Curt. Bot. Mag. IV. 10: pl. 
8557. Je 1914. 
A plant from North America and eastern Asia. 
Stevens, F.L. A destructive strawberry disease. Science II. 39: 949, 
950. 26 Je Igrq. 
Stockberger, W. W. A study of individual performance in hops. 
Ann. Rep. Am. Breeders’ Assoc. 8: 452-457. 1912. 
Stolz, A. A new forage plant. Am. Breeders’ Mag. 4: 162-164. 5S 
1913. [Illust.] 
Desmodium hirtum, 
Swingle, W. T. New citrous fruits. Am. Breeders’ Mag. 4: 83-95. 
pl. 1-7. Je 1913. 
Sydow, H., & Sydow, P. Novae fungorum species—XII. Ann. Myc. 
12: 195-204. 15 My 1914. 
Includes Uredo Herteri sp. nov. from Uruguay and Odontia paulensis sp. nov. from 
Brazil. 
Taylor, F. W. The hereditary characters of the number of rows in 
ears of corn. Ann. Rep. Am. Breeders’ Assoc. 7: 40-42. I912. 
Thaxter, R. Laboulbeniales parasitic on Chrysomelidae. Proc. Am. 
Acad. Arts & Sci. 50: 17-50. My 1914. 
Includes descriptions of thirty-one new species 
Theissen, F. Zur Revision der Gattungen Microthyrium und Seynesia. 
Ost. Bot. Zeits. 62: 216-221. Je 1912; 275-280. Jl 1912; 327- 
329. : se 395-396. O 1912; 430-435. N 1912; 63: 121-131. 
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