INDEX TO AMERICAN BOTANICAL LITERATURE Sol 
Reed, G.M. The discovery of Endophyllum sempervivi (Alb. & Schw.) 
de Bary in North America. Torreya 17: 84, 85. 2 Je 1017. 
Reimer, F. C., & Detjen, L. R. Breeding rotundifolia grapes. N. 
Carolina Agr. Exp. Sta. Tech. Bull. 10: 1-47. f. 1-190. My 1914. 
Rock, J. F. Notes on Hawaiian Lobelioideae, with descriptions of 
new species and varieties. Bull. Torrey Club 44: 229-239. pl. 9-16. 
22 My 1917. 
Five new species are described. 
Roig, J. T., & Fortun, G. M. Las variedades cubanas de boniato. 
Cuba Agr. Exp. Est. Bol. 33: 1-76. pl. 1-32. N 1916. 
Ipomoea batatas. 
Rolfe, R. A. Anguloa Cliftonii, Curt. Bot. Mag. IV. 13: pl. 8700. 
Mr 1917. 
A plant from Colombia. 
Rose, D. H. Blister spot of apples and its relation to a disease of 
apple bark. Phytopathology 7: 198-208. f. 1-3. 2 Je 1917. 
Pseudomonas populans sp. nov. is described. 
Rose, J. N. Echeveria multicaulis. Addisonia 2: 23. pl. 52. 30 Je 
IQI7, 
Rose, J. N. Sedum Bourgaei. Addisonia 2: 33. pl. 57. 30 Je 1917. 
Rosenbaum, J., & Shapovalov, M. A new strain of Rhizoctonia solani 
on the potate.. Jour. Agr. Research 9: 413-419. pl. 25, 26 + f. r- 
18 Je 1917. 
Rudolph, B. A. A new Jeaf-spot disease of cherries. Phytopathology 
7: 188-197. f. 1-3. 2 Je 1917. 
Schneider, A. The sphaerocytes of plants and their possible signifi- 
cance. in plant growth and in neoplasmic formations. Pacific 
Pharmacist 1917: 147-155. f. I-5. : 
Schneider, C. ag naieee chinenses novi—I. Bot. Gaz. 63: 
398-405. 16 My 
Deutzia Rehderiana, Spire teretiuscula, Malus docynioides and Sorbus Ambro- 
2yana, spp. nov., are desc . 
Schneider, C. Aes fruticesque chinenses novi—II. Bot. Gaz. 
63: 516-523. 19 Je 1917. 
Five new species are described 
Seaver, F. J. Possibilities of the truffle industry in America. New 
Country Life 32: 114-116. My 1917. [Illust.] 
Shamel, A.D. A bud variation of Euonymus. Jour. Heredity 8: 218- 
220. f. 5, 6. 26 Ap 1917. 
Shantz, H. L. Plant succession on abandoned roads in eastern Colo- 
rado. Jour. Ecol. 5: 19-42. f. I-23. Mr 1917. 
