INDEX TO AMERICAN BOTANICAL LITERATURE 431 
Harper, R. M. The “Pocosin” of Pike County, Alabama, and its 
bearing on certain problems of succession. Bull. Torrey Club 41: 
209-220. f. 1-4. 13 My 1914. 
Harris, J.A. On the relationship between the number of ovules formed 
and the number of seeds developing in Cercis. Bull. Torrey Club 
41: 243-256. f. 1-3. . 13 My 1914. 
Heimerl, A. Nyctaginaceae. In Pilger, R. Plantae Uleanae novae 
vel minus cognitae. Notizbl. Kénigl. Bot. Gard. Berlin 6: 126-132. 
20 Mr 1914. 
Includes four new species in Neea. 
Higgins, B. B. Contribution to the life history and physiology of 
Cylindrosporium on stone fruits. Am. Jour. Bot. 1: 145-173. pl. 
I3-16. 23 My 1914 
Includes Coccomyces prunophorae and C. lutescens, spp. nov. 
Howe, M.A. The marine algae of Peru. Science II. 39: 254. 13 F 
1914. 
Humphrey, L. E. The honeysuckle family in Ohio. Ohio Nat. 16: 
299-308. 24 Ap 1914. 
Knowlton, C.H. Spiraea salicifolia in slpurg, Vermont. Rhodora 16: 
96. 11 My 1914. 
Krause, K. Rutaceae. In Pilger, R. Plantae Uleanae novae vel 
minus meee Notizbl. Kénigl. Bot. Gard. Berlin 6: 143-149. 
Ap 
alia es one new species each in Fagara, Galipea, Rauia, Erythrochiton, and 
Metrodorea, and Sohnreyia excelsa gen. et sp. no 
Krause, K. Sapotaceae. In Pilger, R. pawns Uleanae novae vel 
minus cognitae. Notizbl. Kénigl. Bot. Gard. Berlin 6: 169-172. 
4 Ap 1914. 
Includes one new species each in Lucuma, Bumelia, Vitellaria, and Chrysophyllum. 
Lipman, C. B. The poor nitrifying power of soils a possible cause of 
‘‘die-back”’ (exanthema) in lemons. Science II. 39: 728-730. 15 
My 1914. 
MacDougal, D. T. The measurement of environic factors and their 
biologic effects. Pop. Sci. Mo. 84: 417-433. f. 1-8 My 1914. 
MacDougal, D. T. The auxo-thermal integration of climatic com- 
plexes. Am. Jour. Bot. 1: 186-193. pl. 17, 18. 23 My 1914. 
Malme, G. Xyridaceae. In Pilger, R. Plantae Uleanae novae vel 
minus cognitae. Notizbl. Kénigl. Bot. Gard. Berlin 6: 117-119. 
20 Mr 1914. 
Includes Xyris Roraimae Malme. 
