256 INDEX TO AMERICAN BOTANICAL LITERATURE 
Herrington, A. Lilies. Jour. Internat. Gard. Club 2:°5-29. Mr 1918. 
[Illust.] 
‘Hoffer, G. N. An aecium on red clover, Trifolium pratense L. Proc. 
Indiana Acad. Sci. 1916: 325, 326. 1917. 
Hoffer, G. N., & Holbert, J. R. Results of corn disease investigations. 
Science II. 47: 246, 247. 8 Mr 1918. 
Holmes, E. M. Medicinal herbs: their cultivation and preparation in 
Great Britain. Jour. Internat. Gard. Club 2: 35-82. Mr 10918. 
[Illust.] 
Jackson, H. S. Apple diseases in Indiana, with spray schedule. 
Indiana Agr. Exp. Sta. Circ. 7: 1-23. f. 1-14. $1917. 
Jackson, T. F. The description and stratigraphic relationships of 
fossil plants from the lower Pennsylvania rocks of Indiana. Proc. 
Indiana Acad. Sci. 1916: 405-428. pl. 7-10 + f..r. 1917. 
ourteen new species are described in Lepidodendron (1), Trigonocarpum (3), 
and Cardiocar pon (10). 
Jackson, H. S., & Osner, G. A. Potato diseases in Indiana. Indiana 
Agr. Exp. Sta. Cire. 71: 1-16. f. 7-5.. S 1617, 
Jones, L. R. Disease resistance in cabbage. Proc. Nat. Acad. Sci. 4: 
4240.7. 9,92 15 F 918; 
Kendall, J. N. Abscission of flowers and fruits in the Solonaceae, with 
special reference to Nicotiana. Univ. Calif. Publ. Bot. 5: 347-428. 
pl. 490-53 +f. I-10. 6 Mr 1918. 
Knowlton, C. H., & Deane, W. Reports on the flora of the Boston 
District,—XXVI. Rhodora 20: 15-18. 25 Ja 1918;—XXVII. 
Rhodora 20: 55-59. 2 Mr 1918. : 
Long, B. History of the American record of Scirpus mucronatus. 
Rhodora 20: 41-48. 2 Mr 1918. 
Ludwig, C. A., & Rees, C. C. The structure of the uredinium in 
Pucciniastrum Agrimoniae. Am. Jour. Bot. 5: 55-60. pl. 8. 9 
Mr 1918. 
Lunell, J. The collecting, drying and mounting of plant specimens. 
Am. Mid. Nat. 5: 191-195. Mr 1918. 
Lyman, G. R. The need of organization of American botanists for 
more effective prosecution of war work. Science II. 37: 279-285. 
22 Mr 1918. 
