\ 
INDEX TO AMERICAN BOTANICAL LITERATURE 299 
Scott, C. A. The hardy catalpa. Kansas State Agr. Col. Exp. Sta. 
Cire. 20: 1-19. [1912.] [Illust.] 
Catalpa speciosa. 
Shear,C.L. The chestnut bark fungus, Diaporthe parasitica. Phyto- 
pathology 2: 88, 89. Ap 1912. 
Snow, J. W. Two epiphytic algae: a correction. Bot. Gaz. 53: 347. 
15 Ap 1912. 
Spaulding, P., & Field,E.C. Two dangerous imported plant diseases. 
U.S. Dept. Agr. Farm. Bull. 489: 5-29. f. 1-3. 9 Ap 1912. 
Peridermium Strobi Klebahn and Chrysophlyctis endobiotica Schilb. 
Spillman, W. J. Application of the principles of heredity to the im- 
provement of plants and animals. Proc. Am. Breed. Assoc. 6: 
397-419. 1911, 
Spillman, W. J. A theory of Mendelian phenomena. Proc. Am. 
Breed. Assoc. 6: 78-90. I9QII. 
Stevens, N. E. Observations on heterostylous plants. Bot. Gaz. 53: 
277-308. pl. 21-23. 15 Ap 1912. 
Steward, J. R. Variability of the maize plant. Proc. Am. Breed. 
Assoc. 6: 245-252. 1911. : 
Stewart, A. Expedition of the California Academy of Sciences to the 
Galapagos Islands 1905-1906—V. Notes on the botany of Cocos 
Island. Proc. Calif. Acad. Sci. 1: 375-404. pl. 31-34. 19 Ja 1912. 
Stone, W. Abama americana (Ker) Morong. Bartonia 4: 1-5. Mr 
1912. [Illust.] 
tout, A.B. A sclerotium disease of blue joint and other grasses. 
Univ. Wisconsin Agr. Exp. Sta. Research Bull. 18: 207-253. f..1-&. 
[Mr 1912,] 
Stover, => G. The Agaricaceae of Ohio. A preliminary report with 
keys to the genera and species. Proc. Ohio State Acad. Sci. 5: 
462-577. Mr 1912. 
Taubenhaus, J. J. A study of some Gloeosporiums and their relation 
to a sweet pea disease. Phytopathology 1: 196-202. pl. 30 +f. I- 
ae D torr, 
' > Fragments brasilica V _ nebst Besprechung einiger 
Pitcher Microthyriaceen. Ann. Myc. 10: AOg 704 * SSD 
O12, ; 
FF Hymenomycetes riograndenses. Broteria 10: 5-28. fl. 
™4. Ap toro, 
7 &., & Allin, A. E. Do the Abictinese extend to the 
Sou Bot. Gaz. 53: 339-344. pl. 26 +f. ees 15 Ap 
