INDEx TO AMERICAN BOTANICAL LITERATURE 343 
Rolfe, R. A. The evolution of the Orchidaceae. Orchid Rev. 17: 129- 
132. My 1909; 193-196. Jl 1909; 249-252. Au 1909; 289-292. O 
1909; 353-356. D 1909. 
Rose, J. N. Five new species of Crassulaceae from Mexico. Contr. U.S, 
Nat. Herb. 12: 439, 440. pl. 77-81. 21 Jl 1909. 
Rosenstock, E. Filices Spruceanae adhuc nondum descriptae in herbario 
Rolandi Bonapartii Principis asservatae. Repert. Nov. Spec. 7: 289- 
310. 10N 1909. 
Includes 22 new species. 
Rydberg, P. A. Studies in the Rocky Mountain flora—XX. Bull. Torrey 
Club 36: 675-698. 28 D 1909. 
Includes 31 new species of flowering plants. 
Safford, W. E. Cactaceae of northeastern and central Mexico, together 
with a synopsis of the principal Mexican genera. Smithson. Rep. 1908: 
525-503 + i-xii. pl. 1-15 +f. I-24. 1909. 
Schaffner, J.H. New and rare Ohio plants. Ohio Nat. 10: 39. 17 D 1909. 
Schweiger, J. Vergleichende Untersuchungen iiber Sarracenia und Cepha- 
lotus follicularis betreffs ihrer etwaigen systematischen Verwandtschait. 
Beih. Bot. Centralb. 257: 490-539. f. 1-58. 6 D 1909. 
Seaver, F. J. The Hvypocreales of North America—II. Mycologia 1: 
177-207... fi. 13. 5S 1000. 
Somes, M. P. Some new cr little known plants in lowa. Iowa Nat. 2: 
47-50. Jl 1909. 
Spalding, V. M. Distribution and movements of desert plants. I-144 + 
i-v. pl. 1-31 +f. 1-3. Washington, D.C. 22 O 1909. 
Carnegie Inst. Washington, Publ. no. 113. 
Includes under subtitles articles by B. Fink, W. A. Cannon, B. E. Livingston, 
. Thornber, and D. T. MacDougal. These are indexed separately under their 
reenectivk authors 
Theissen, F. Marasmii austro- brasilienses. Broteria 8: 53-65. 1909. 
Includes two new species of Marasm 
Thornber, J. J. Vegetation groups oF the Desert Laboratory domain. In 
Spalding, V. M., Distribution and movements of desert plants, 103-112. 
Washington, D. C. 22 O 1009. 
Carnegie Inst. Washington, Publ. no. 113. 
Thornber, J. J. Vegetation groups of the Desert Laboratory zone. Plant 
World 12: 289-293. D 1909. 
Torrend, C. Les Myxomycetes. Etude des espéces connues jusqu’ici. 
Supplément. Broteria 8: 1-30. 1909. 
Transeau, E. N. Successional relations of the vegetation about Yarmouth, 
Nova Scotia. Plant World 12: 271-281. f. 1-4. D 1909. 
