INDEX TO. AMERICAN BOTANICAL LITERATURE 339 
Meyer, R. Einiges iiber Echinocactus arizonicus R. E. Kunze. Monats. 
Kakteenk. 26: 12-14. Ja 1916. 
Murrill, W. A. An attractive species of Melanoleuca from Oregon. 
Mycologia 8: 113. 11 Ap 1916. 
Melanoleuca olivaceiflora sp. nov. 
Nash, G. V. Begonia Cowellii, Addisonia 1:9, 10. pl. 5. 31 Mr 
IgI6. 
A new species, 
Nash, G. V.  Columnea gloriosa. Addisonia 1: 13, 14. pl. 7. 31 Mr 
1916. 
Nash, G. V. Fouquieria formosa. Addisonia 1: 15, 16. pl. 8 31 Mr 
Nash, G. V. Mavillaria ringens. Addisonia 1: 17, 18. pl. 9. 31 Mr 
Nash, G. V. Rhododendron carolinianum. Addisonia 1: 1, 2. pl. I. 
31 Mr i916. 
Nash, G. V.. Robinia Kelseyi. Addisonia I: 5, 6. pl. 3. 31 Mr 1916. 
Osterhout, W. J. V. The nature of mechanical stimulation. Proc. 
Nat. Acad. Sci. 2: 237-239. f. z- Ap 1916. 
Peltier, G.L. Sclerotium Rolfsii in Mlinois. Phytopathology 6: 201, 
202. 4 Ap 1916. 
Pittier, H. New or noteworthy plants from Colombia and Central 
America—s. Contr. U. S. Nat. Herb. 18: i-ix + 143-171. Pb. 
57-80 + f. 88-97. 3 Mr 1916. 
Fourteen new species and one new genus (Bombacopsis) are described. 
Pool, V. W., & McKay, M. B. Climatic conditions as related to Cerco- 
spora beticola. Jour. Agr. Research 6: 21-60. pl. 3, 4+f. I-19. 
3 Ap 1916. 
Reichert, E. T. The specificity of proteins and carbohydrates in 
relation to genera, species and varieties. Am, Jour. Bot. 3: 9! 
Mr 1916. 
Rhoads, S.N. Botanica neglecta. William Young, Jr- (of Philadelphia) 
‘Botaniste de Pensylvanie’’ and his long-forgotten book, being @ 
facsimile reprint of his “Catalogue d’Arbres, Arbustes et Plantes 
Herbacées d’Amérique.” i-xi + 1-55- Ap 1976. 
Includes a prefatory account of the author and critical notes by the — 
Riddle, L. W. The lichens of Bermuda. Bull. Torrey Club 43: 145~ 
160, 14 Ap 1916. 
Includes description of seven new species. 
