530 INDEX TO AMERICAN BOTANICAL LITERATURE 
Otis, C. H. Key to the species and varieties of Solidago in Michigan. 
Ann. Rep. Michigan Acad. Sci. 15: 205-208. a. 
Pammel, L. H. The grasses of the Uintah Mountains and adjacent 
regions. Proc. lowa Acad. Sci. 20: 133-149. I913. 
Pittier, a Primitiae florae costaricensis ah she ast (pars). 1-223. 
San José. 1907. 
This part cikeetened by John Donnell Smith. 
Popenoe, W. The Jaboticaba. Jour. Heredity 5: 318-326. f. 11-16 
+ frontispiece. Ji 1914. 
Prescott, A. The mints. Am. Bot. 20: 44, 45. My 1914. 
Purpus, J. A. Sieben neue Kakteen aus Mexico. Monats Kakteenk. 
22: 148-150. 15 O 1912; 22: 161-164. 15 N 1912 
Quick, B.E. The pine hills at Lowell, Michigan. Ann. Rep Michigan 
Acad. Sci. 15: 145, 146. 1913. 
Ramaley, F. The amount of bare ground in some mountain grasslands. 
Bot. Gaz. 57: 526-528. 19 Je 1914. 
Reed, C. A. Wild flowers east of the Rockies. i-xiv + 1-427. New 
York. 1910. 
Reed, G. B. The oxidases of acid tissues. Bot. Gaz. 57: 528-530. 
19 Je 1914. 
Rehm, H. Ascomycetes exs. Fasc. 54. Ann. Myc. 12: 165-170. 15 
My 1914; Fasc. 55. Ann. Myc. 12: 170-175. 15 My 1914. 
Several American species are described. 
Roberts, H. F. First generation hybrids of American X Chinese corn- 
Ann. Rep. Am. Breeders’ Assoc. 8: 367-384. f. 1-5. 1912. 
Roberts, H. F. Variation and correlation in wheat. Ann. Rep. Am. 
Breeders’ Assoc. 7: 80-109. f. I-II. 1912. 
Rolfe, R. A. Gongora grossa. Curt. Bot. Mag. IV. 10: pl. 8562. 
Ji 1914. 
A species from Ecuador. 
Safford, W. E. Classification of the genus Annona, with descriptions 
of the new and imperfectly known species. Contr. U.S. Nat. Herb. 
18: i-xii + 1-68. pl. 1-417 +f. 1-75. 17 Je 1914. 
Includes Fusaea and Geanthemum, gen. nov., and six new species in Annona 
Saunders, C. F. Palestine fruits in California gardens. Am. Bot. 20: 
61-64. 914. 
Originally published in ‘‘ Forward.” 
Sconce, H. J. Scientific corn breeding. Ann. Rep. Am. Breeders’ 
Assoc. 7: 43-50. 1912. [Illust.] 
Scott, D. H. The present position of paleozoic botany. Smithsonian 
Rep. 1907: 371-405. pl. 1, 2. 1907. 
Seidelin, A. Hippuridaceae, Halorrhagidaceae and Callitrichaceae- 
Meddelelser om Grénland 36: 297-332. f. I-19. 1910. 
The structure and biology of arctic flowering plants. I. 
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