262 INDEX TO AMERICAN BOTANICAL LITERATURE 
Rusby, H. H. Vegetable foods; their distinctive characteristics and 
classification. Jour. N. Y. Bot. Gard. 15: 1-5. Ja 1914. 
Rydberg, P. A. Phytogeographical notes on the Rocky Mountain 
region—I. Alpine region. Bull. Torrey Club 40: 677-686. 6 Ja 
14. 
Sackett, W. G. The nitrifying efficiency of certain Colorado soils. 
Colorado Agr. Exp. Sta. Bull. 193: 3-43. Ja 1914. 
Seaver, F. J. A preliminary study of the genus Lamprospora. Mycoe 
logia 6: 5-24. pl. 114. 14 Ja 1914. 
Includes Lamprospora ascoboloides, L. annulata, L. spinulosa, L. Maireana, 
L. tuberculatella, spp. nov. 
Seaver, F. J., & Murrill, W. A. Notes on truffles recently collected in 
the eastern United States. Jour. N. Y. Bot. Gard. 15: 14, 15. 
Ja 1914. 
Sherff, E. E. Evaporation conditions at Skokie Marsh. Plant World 
16: 154-160. f. 1-4. My 1913. 
Shull, C. A. The réle of oxygen in germination. Bot. Gaz. 57: 64-69, 
16 Ja 1914. 
Skinner, J. J. Illustration of the effect of previous vegetation on a 
following crop: cabbage after sesame. Plant World 16: 342-346. 
Jedi: EY 4013. 
Slosson, M. New ferns from tropical America—III. Bull. Torrey 
Club 40: 687-690. pl. 26 +f. 1, 2. 6 Ja 1914. 
Polystichum machaerophyllum and Trichomanes rhipidophyllum, spp. nov. 
Small, H. B. Botany of Bermuda. 1-85. Hamilton. 1913. 
Smith, C. P. Plurality of seeds in acorns of Quercus Prinus. Rhodora 
16: 41-43. f. I-3. 2F 1914. 
Smith,G. M. The preservation of fresh water Chlorophyceae. Plant 
World 16: 219-230. Au 1913. 
Smyth, B. B., & Smyth, L.C. R. Provisional catalogue of the flora of 
Kansas. Part Il.—gymnosperms and monocotyls. Trans. Kansas 
Acad. Sci. 26: 63-128. 1913. 
Standley, P. C. Studies of tropical American Phanerogams—No. I. 
Contr. U. S. Nat. Herb. 17: 427-458. pl. 24-31. 30 Ja 1914. 
Includes descriptions of thirty-two new species. 
Standley, P.C. Two additions to the flora of Louisiana. Torreya 14: 
21-24. 9F 1914. 
Stewart, A. A simple apparatus for illustrating photosynthesis. 
Science II. 39: 67. 9 Ja 1914. 
Stopes, M.C. Catalogue of the mesozoic plants in the British Museum 
(Natural History). The cretaceous flora. Part I. Bibliography, 
