474 INDEX TO AMERICAN BOTANICAL LITERATURE 
Kauffman, C. H. Unreported Michigan fungi for 1915 and 1916, with 
an index to the hosts and substrata of Basidiomycetes. Ann, 
Rep. Michigan Acad. Sci. 19: 145-157. 1917. 
Kirkwood, J. E. The conifers of the northern Rockies. Dep. Int. 
Bur. Ed. Bull. 53: 1-61. f. 1-37. 1918. 
Kirkwood, J. E. A Mexican hacienda. Nat. Geog. Mag. 536-584. 
My 1914. [Illust.] 
Contains some botanical information. 
Kitchin, P.C. The effect upon the growth of some coniferous seedlings 
of various conditions of shade and moisture. Ann. Rep. Michigan 
Acad. Sci. 19: 337-356. pl. 17-23. 1917. 
Krakover, L. J. The leaf-spot disease of red clover caused by Mac- 
rosporium sarcinaeforme Cav. Ann. Rep. Michigan Acad. Sci. 
19: 275-328... To-FO-- f2 947s: 1917. 
Levine, M. N., & Stakman, E. C. A third biologic form of Puccinia 
graminis on wheat. Jour. Agr. Research 13: 651-654. 17 Je 1918. 
Macbride, J. F. A new Perezia adventive in Massachusetts. Rhodora 
20: 150-152. 1 Au 1918. 
Macbride, J. F. A new species of bladdernut. Rhodora 20: 127-129. 
22 Jl 1918. 
Staphylea Brighamii sp. nov. 
MacCaughey, V. The Hawaiian Lehua. Am. Forestry 24: 409-418. 
Jl 1918. [Illust.] 
MacCaughey, V. The strand flora of the Hawaiian Archipelago—I. 
Geographical relations, origin, and composition. Bull. Torrey 
Club 45: 259-277. 9 Au 1918. : 
Marsh, C. D. Stock-poisoning plants of the range. U. S. Dept. Agr. 
Bull. 575: 1-24. pl. 1-30. 23 Jl 1918. 
Martin, W. H. Dissemination of Septoria lycopersici Speg. by insects 
and pickers. Phytopathology 8: 365-372. 17 Jl 1918. 
Massey, L. M. The diseases of roses. 
Trans. Massachusetts Hort. 
Soc. 1918: 81-101. pl. z, 2. 1918. 
Matz, J. Diseases and insect pests of the pecan. Florida Agr. Exp. 
Sta. Bull. 147: 135-162. f. 45-93. My 10918. 
Maxon, W. R. Polystichum Andersoni and related species. Am. 
Fern Jour. 8: 33-37. 6 Au 1918, 
Includes Polystichum alaskense sp. nov. 
McKee, R. Purple vetch. U.S. Dept. Agr. Farm. Bull. 967: 1-12. 
Ff. &-6,., Je 1918. 
