INDEX TO AMERICAN BOTANICAL LITERATURE 457 
House, H. D. Report of the State Botanist 1917. N. Y. State Mus. 
Bull. 205, 206: 1-169. pl. 1-23 +f. 1-6. 
Includes papers by Dearness & House, G. F. Satie and L. O. Overholts, 
here indexed separately. 
Hurd, A. M. Some orienting effects of monochromatic lights of 
equal intensities on Fucus spores and rhizoids. Proc. Nat. Acad. 
Sci. 5: 201-206. Je 1919. 
Jones, F. R. The leaf-spot diseases of alfalfa and red clover caused 
by the fungi Pseudopeziza medicaginis and Pseudopesiza trifolii re- 
spectively. U.S. Dept. Agr. Bull. 759: 1-38. pl. 1-3 +f. I-4. 
19 Je 1919. 
Jones, L. R., & McKinney, H. H. The influence of soil temperature on 
potato scab. Phytopathology 9: 301, 302. Jl 1919. 
Kempton, J. H. Inheritance of waxy endosperm in maize. U. S. 
Dept. Agr. Bull. 754: 1-99. f. 1-14. 26 Je 1919. 
Kezer, A. & Boyack, B. Mendelian inheritance in wheat and barley 
crosses with probable error studies on class frequencies. Colorado 
Agr. Exp. Sta. Bull. 249: 1-139. pl. 7-9 + f. 1-10. O 1918 
Knight, H. G. Effect of altitude upon the composition of forage 
plants. Trans. Illinois Acad. Sci. 9: 91-95. 1916. 
Knowlton, F. H. Contributions to the geology and paleontology of 
San Juan County, New Mexico—y4. Flora of the Fruitland and 
Kirtland Formations. _U. S. Geol. Surv. Prof. Paper 98S: 327- 
353- pl. 84-91. 18 D 1916. 
Sixteen new species in various genera are described. 
Knowlton, F. H. The flora of the Fox Hills egies U.S. Geol. 
Surv. Prof. Paper 98H: 85-93. pl. 15-18. 3Je19 
Sequoia magnifolia, seria coloradenis, Po heads stantoni, Rhamnus 
willardi, Aristolochia coloradensis, Viburnum vulpinum and Phyllites Cockerelli, spp. 
nov., are described. 
a F. H. Principles governing ie use of fossil plants in 
geologic correlation. Bull. Geol. Soc. Am. 27: 525-530. 1 S 
1916. 
Lankester, C. H. Orchids of Costa Rica. Orchid Rev. 27: 84. Je 
IQI9. 
Levy, D. J. Preliminary list of mosses collected in the neighborhood 
of Hulett’s Landing, Lake George, N. Y. Bryologist 22: 23-26. 
15 Jl 1919. 
Lloyd, C. G. Mycological notes No. 57:, 830-844. f. 1388-1412. 
Ap 1919; No. 58: 814-828. f. 1358-1387. Mr 1919. 
