40 INDEX TO AMERICAN BOTANICAL LITERATURE 
the introduced element. Philip. Jour. Sci. 7: (Bot.) 145-208. 
2S 1912. 
Miller, F. A. The improvement of medicinal plants. Proc. Indiana 
Acad. Sci. 1911: 309-320. 1912. [Illust.] 
Moore, G. T. Microorganisms of the soil. Science II. 36: 609-616. 
N 1912. 
Murrill,W.A. The Agaricaceae of the Pacific Coast—III. Mycologia 
4: 294-308. pl. 77. 23 N 1912. 
New species are described in Agaricus (9), Stropharia (2), Drosophila (5), and 
Gomphidius (1). 
Murrill, W. A. Illustrations of fungi—XII. Mycologia 4: 289-293. 
pl. 74. 23 N 1912. 
The following species of Russula are described and illustrated: R. sericeonitens 
Kaufiman, R. Mariae Peck, R. emetica Fries, R. sulcatipes Murrill sp. nov., R. obscura 
Romell, R. uncialis Peck, R. foetens, Pers., and R. rubriochracea Murrill sp. nov. 
Murrill, W. A. New combinations for tropical agarics. abvectita 4: 
331, 332. °- 23 NIGt2. 
Murrill, W. A. The Polyporaceae of Mexico. Bull. N. Y. Bot. Gard. 
8: 137-153. 23 N 1912. 
Includes new species in Coriolopsis (4), Coriolus (6), Favolus (1), Grifola (1), 
Hexagona (3), Trametes (2), Tyromyces (1), Ganoderma (2), Daedalea (1), Pyropoly- 
porus (1), Gleophyllum (1), and Lenzites (1). 
Murrill, W. A. Species of Hydnaceae appear to be scarce on the 
Pacific coast, as elsewhere. Mycologia 4: 330. 23 N 1912. 
Short notes on five species collected by the author 
Orton, C. R. The prevalence and prevention of stinking smut in 
Indiana. Proc. Indiana Acad. Sci. 1911: 343-346. 1912. 
Osner, G. A. Diseases of ginseng caused by sclerotinias. Proc. 
Indiana Acad. Sci. rorr: 355-364. f. I-6. 1912. 
Osterhout, W. J. V. Some chemical relations of plant and soil. Sci- 
ence II. 36: 571-576. 1N 1912. 
Owens, C. E. A monograph of the common Indiana species of Hy- 
poxylon. Proc. Indiana Acad. Sci. r911: 291-308. f. 1-16. 1912. 
Pace, L. Parnassia and some allied genera. Bot. Gaz. 54: 306-329. 
pl. 14-17. 15 O 1912. 
Petry, E. J. Nutrients in green shoots of trees. Proc. Indiana Acad. 
Sci. 1911: 321-324. 1912. 
Piper, C. V., & McKee, R. Vetches. U.S. Dept. Agr. Farm. Bull. 
515: 5-28. f. 1-10. 11 N 1912. ; 
Prescott, A. The tall spleenworts. Fern Bull. 20: 46, 47. [O] 1912. 
Prince, S.F. Notes on various ferns. Fern Bull. 20: 52, 53. [O] 1912. 
Pulle, A. Neue Beitrage zur Flora Surinams—III. Rec. Trav. Bot. 
Néerlandais 9: 125-168. pl. 2, 3. 1912. 
