Index to Recent Literature 523 



Preston, C. E. Structural Studies on Southwestern Cactaceae. Bot. 



Gaz. 32: 35-55./ J-P- 24 Jl. i9 QI - 

 Rehder, A. Note on Basitima and Schizonotus of Rafinesque. Bot. 

 Gaz. 32 : 56-58. 24 Jl. 1901. 



Rendle, A. B. A new Philodendron. Journ. Bot. 39. Au. 1901. 



Philodendron crassum Rendle, a plant cultivated in England, supposed to have been 

 brought from Brazil. 



Rolfs, P. H. Florida Lichens. Trans. St. Louis Acad. Sci. II : 25- 

 39. 16 Mr. 1901. 



List of 176 species. 



Sargent, C. S. New or little-known North American Trees. III. 

 Bot. Gaz. 31 : 217-240. 15 Ap. 1901. 



New species in Crataegus (12), Betula and Cupressus. 



Saunders, D. A. A new species of Alaria. Minn. Bot. Stud. 2 : 

 561-562. pi. j?j\ 20 JL 1901. 



A. curtipes from California. 



Schaffner, J. H. A Contribution to the Life History and Cytology of 

 Erythronium. Bot. Gaz. 31 : 369-387. pi. 4-9. 20 Je. 1901. 



Shear, C. L. Our Puff balls.— IV. Plant World, 4: 124-127. / /• 



ji- 1901. 



Compiled descriptions of Tylostoma and Geaster. 



Sheldon, E. P. Preliminary notes on the Epinasty and Hyponasty of 

 Rhaphanus Cotyledons. Bull. Minn. Acad. Nat. Sci. 3 : 362-369. 

 1901. 



Sherborn, C. D., & Woodward, B. B. The Dates of Humboldt and 

 Bonpland's "Voyage." Jour. Bot. 39: 202-205. Je. 1901. 



Shimek, B. Addenda to the Flora of Lyon County (Iowa). Bull. 

 Lab. Nat. Hist. State Univ. Iowa, 5: 215, 216. My. 1901. 



Smith, E. F. Are there Bacterial Diseases of Plants ? A Consideration 

 of some Statements in Dr. Alfred Fischer's Vorlesungen uber 

 Bakterien. Centralbl. Bakteriologie, Parasitenkunde und Infections- 

 krankheiten, 5: 271-278. 1899. 



Smith, E. F. Dr. Alfred Fischer in the Role of Pathologist. Cen- 

 tralbl. Bakteriologie, Parasitenkunde und Infektionskrankheiten, 5 : 

 810-817. 1899. 



Smith, E. F. Entgegnung auf Alfred Fischer's " Antwort ' ' in Betreff 

 der Existenz von durch Bakterien verursachten Pflanzenkrankheiten. 

 Centralbl. Bakteriologie, Parasitenkunde und Infektionskrankheiten, 

 7: 88-199. pl' J— II- 1 90 1. 



