556 Index to American botanical literature 



Perkins, L. R. Viola pallens with pure white petals. Rhodora 1 1 : 



164. Au 1909. 

 Plitt, C. C. ^oit?, QVi Monotropsis odorata. Rhodora ii : 153? 1 54- 



Au 1909. 

 Reed, F. M. The flora of the Arroyo Terquisquite. Aluhlenbergia 5 : 



93-99- 5 Au 1909. 

 Reed, G. M. The mildews of the cereals. Bull. Torrey Club 36 : 



353-388. 14 Au 1909. 

 Robinson, C. B. Philippine Phyllanthinae. Philippine Jour. Sci. 4^ 



71-105. Ap 1909. 



Includes descriptions of many new species. 



Rolfe, R. A. Ruhus canadensis. Curt. Bot. Mag. IV. 5 : //. 8264. 



Jl 1909. 

 Rolfe, R. A. A revision of the genus Cyawches. Kew Bull. Misc. 



Inf. 1909: 268-277././-^. 1909. 

 Rydberg, P. A. Notes on Rosaceae — \\. Bull. Torrey Club 36: 



397-407, 14 Au 1909. 

 Schulz, 0. E. Erythroxylaceae. [In Herzog, Siphonogamae nov 



] 



Repert. Nov. Spec. 7: 57, 58. 20 Ap 1909. 



Scotti, L. Eteranteria in Solanum citrulUfolium A. Br. Malpighia 22 : 



527-536. 1909. 

 Seaver, F^ J. Studies in pyrophilous fungi — I, The occurrence and 



cultivation of Fyronema, Mycologia I : 13 ^-^39- /^- 9~^^' ^^ 

 Jl 1909. 



Shafer, J. A. Botanical explorations in northeastern Cuba. Jour. N. 

 Y. Bot. Gard. lO: 132-T39. Je 1909. 



Shaw, C. H. Present problems in plant ecology. III. Vegetation 



and altitude. Am. Nat. 43: 420-431* Jl 1909. 

 Shear, C. L. Sphaerodothis, a new genus of Dothidiaceous fungi. 



Mycologia i ; 161-163. 22 Jl 1909. 



ShuU, G. H. The ''presence and absence" hypothesis. Am. Nat. 

 43: 410-419. Jl 1909, 



Shull, G. H. A simple chemical device to illustrate Mendelian in- 

 heritance. Plant World 12 : 145-152. Jl 1909. [Illust.] 



Sinnott, E. W. On raesarch structure in Lycopodium. Bot, Gaz. 48 : 

 138-145. pL 10, 21 Au 1909. 



Smith, E. P., & Hedges, F. Diplodia disease of maize (suspected 

 cause of pellagra). Science II. 30: 60, 61. 9 Jl 1909. 



