60 INDEX TO AMERICAN BOTANICAL LITERATURE 
Lang, W.H. Plant morphology. Science II. 42: 780-791. 3 D 1915. 
Lantz, C. W. A bibliography of non-parasitic diseases of plants. 
Illinois Agr. Exp. Sta. Circ. 183: 80-111. My 1915. 
Lizer, C. Quelques notes pour servir de complément au recueil de 
Mr. L. Hauman-Merck sur ‘ Les parasites végétaux des plantes 
cultivées en Argentine et dans les regions limitrophes.’”’ Anal. 
Soc. Cien. Argentina 78: 5-17. Au 1914. 
Maza, M. G. de la, & Roig, J. T. Flora de Cuba (datos para su 
estudio). Cuba Est. Exp. Agron. Bull. 22: 1-182. pl. 1-33. D 
1914. 
Melchers, L. E. The grouping and terminology of plant diseases. 
Phytopathology 5: 297-302. N 1915. 
Melhus, I. E. Germination and infection with the fungus of the late 
blight of potato (Phytophthora infestans). Wisconsin Agr. Exp. Sta. 
Research Bull. 37: 1-64. f. 1-6. Au 1915. 
Meyer, R. Uber die Formen brevispina und longispina der Echinopsis 
campylacantha var. Poselgeri. Monats. Kakteenk. 25: 43, 44- 
Je 1915. 
Moore, E. The Potamogetons in relation to pond culture. Bur. 
Fisheries Bull. 33: 251-291. pl. 22-39. 28 Jl 1915. 
Moxley, G. E. Pellaea Rafaelensis, sp. nov. Am. Fern Jour. 5: 107, 
108, pl. 8 D 1915. 
Murrill, W. A. Preliminary list of Upper St. Regis fungi. Mycologia 
7: 297-306. pl. 167-169+f. 1-4. N 1915. 
Murrill, W. A. A visit to the pine barrens. Torreya 15: 247, 248 
19 N 1915. 
O’Gara, P. J. A Podosporiella disease of germinating wheat. Phy- 
topathology §: 323-326. pl. 15, 16. N 1915. 
Osterhout, W. J. V. The measurement of toxicity. Jour. Biol. 
Chemistry 23: 67-70. f. 7. N I9I5. 
Parish, S. B. The southern California ferns. Am. Fern Jour. 5: 
97-104.. Dig15.  - 
Payson, E. New and noteworthy plants from southwestern Colorado. 
Bot. Gaz. 60: 374-382. 15 N 1915. 
Includes ten new species in A quilegia (1), Cleomella (1), Lupinus (2), Astragalus 
(2), Psoralea (1), Oreocarya (1), Pentstemon (1), and Helianthella (1). 
Petch, T. Citrus mildew. Phytopathology 5: 350-352. N 1915. 
Phelps, O. P. More about the habitat of Ophioglossum. Am. Fern. 
Jour. 5: 113-115. D 1915. 
