INDEX TO AMERICAN BOTANICAL LITERATURE 301 
Rigg, G. B. The effect of some Puget Sound bog waters on the root 
hairs of Tradescantia. Bot. Gaz. 55: 314-326. 15 Ap 1913. 
Roberts, J.W. The ‘“‘rough bark” disease of the yellow Newton apple. 
U.S. Dept. Agr. Plant Ind. Bull. 280: 5-16. pl. 1-3+f. 1, 2. 12 Ap 
1913. : 
A disease caused by Phomopsis Mali. 
Rood, A. N. Juncus monostichus in Ohio. Rhodora 15: 62. 12 Ap 
1913. 
Saccardo, P. A. Notae mycologicae. Ann. Myc. 11: 14-21. 15 Mr 
Includes Aecidium zonatum, A. Theveliae, ea uberata, Macrophoma 
mexicana, and Didymopsis phyllogena, spp. nov Mexico. 
Sargent, F. L. Plants and their uses. i introduction to botany. 
i-x+1-610. f. 1-384. New York, 1913. 
Seeley, H. M. Some features of the dandelion. Bull. Vermont Bot. 
Club 8: 13, 14. Ap 1913. 
An abstract. 
Setchell, W. A. Mushrooms and _ toadstools. Univ, Calif. Agr. 
Exp. Sta. Circ. 84: 1-4. Ja 1913. 
Shantz, H. L. The effects of artificial shading on plant growth in 
Louisiana. U.S. Dept. Agr. Plant Ind. Bull. 279: 5-31. pl. 1-6 
+f. I-Iz. 16 Ap 1913. 
Sharp, K. D. Summer ina bog. 1-149. Cincinnati, 1913. 
Shear, C. L., & Wood, A. K. Studies of fungous parasites belonging 
to the genus Glomerella. U.S. Dept. Agr. Plant Ind. Bull. 252: 
5-110. pl. 1-18 +f. I-4. 25 Ja 1913. 
Slosson, M. The stag-horn ferns. Jour. N. Y. Bot. Gard. 14: 63-67. 
pl. 112, 113. Mr 1913. 
Small, J. K. The genus Malpighia in Jamaica. Torreya 13:77- Ap 
Malpighia Harrisiit Small sp. nov. described. 
Jour. N. Y. 
Small, J. KK. Report on exploration in tropical Florida. 
Bot. Gard. 14: 81-86. 6 Ap I913. 
Smith, M. V. (Mrs. C. H.) An old-time herbarium. Bull. Vermont 
Bot. Club 8: 19-21. Ap 1913. 
An abstract. : 
Speare, A. T., & Colley, R. H. The artificial use of the brown-tail 
fungus in Massachusetts, with practical suggestions for private 
experiment, and a brief note on a fungous disease of the gypsy 
caterpillar, 5-31. pl. r-8+f. 1, 2. Boston, 1912. 
Sprague, T. A. Hypericum Kalmianum. Curt. Bot. Mag. IV. 9: 
pl. 8491. Ap 1913. 
