INDEX TO AMERICAN BOTANICAL LITERATURE 395 
form, Petalostemum purpureum {. arenarium. Torreya 11: 125-128, 
goa. 19 Jo 1011. 
Hannibal, H. A Pliocene flora from the Coast Ranges of California. 
Bull. Torrey Club 38: 329-342. pl. 15. 27 Jl 1911. 3 
Harper, R. M. Early spring aspects of the coastal plain vegetation of 
South Carolina, Georgia, and northeastern Florida. Bull. Torrey 
Club 38: 223-236. 15 Je 1grt, 
Harper, R. M. The Hempstead Plains. A natural prairie on Long 
Island. Bull. Am. Geog. Soc. 43: 351-360. f. 1-5. My 1911. 
Harshberger, J.W. Florida: a botanist’s happy hunting ground. Old 
Penn Week. Rev. Univ. Penn. 9: 678-682. f.. 1-4. 18 Mr 1911. 
Hillier, J. M. Balata. Mimusops bidentata DC. Kew Bull. Misc. 
Inf. 1911: 198-202. My to11. 
Holm, T. Mollugo verticillata L. Am. Jour. Sci. IV. 31: 525-532. f. 
I-g. Je 1911. 
Hopkins, L.S. A list of the ferns found in the vicinity of Ohio Pyle, 
Pa. Am. Fern Jour. 1: 101-103. 7 Au 1911. 
Hopkins, L.S. A new variety of the cinnamon fern. Am. Fern Jour. 
I: 100, 101. 7 Au rgrt. 
Osmunda cinnamomea auriculata var. nov. described and illustrated. 
Howe, M. A. The Codiaceae of the Siboga expedition, including a 
monograph of the Flabellarieae and Udoteae. Torreya Ir: 133-137. 
19 Je 1911. 
A review, with notes on several species. 
Howe, R. H., Jr. The genus Evernia as represented in North and 
Middle America. Bot. Gaz. 51: 431-442. pl. 24, 25: 19 Je 1911. 
Kingsley, M.A. On the anomalous splitting of the rhizome and root 
of Delphinium scaposum. Bull. Torrey Club 38: 307-317. pl. 13, 
agi. t,o, 97 Jt10911; 
Knowlton, C.H. Hottonia inflata a winter annual. Rhodora 13: 108. 
5 Je rgrt. 
Knowlton, C. H. The boreal flora of the Washington County coast. 
Bull. Josselyn Bot. Soc. Maine 4: 11. Ap 1911. 
Knowlton, C. H., and others. Reports on the flora of the Boston district, 
XI, Cyperacede. Rhodora 13: 104, 105. 5 Je 1911. 
Knowlton, F.H. The study of fossil ferns. Am. Fern Jour. r: 105-110. 
7 Au 1911. 
Lacy, M. G. Pre-columbian references to maize in Persian literature. 
Science II. 33: 968-970. 23 Je 1911. 
