36 INDEX TO AMERICAN BOTANICAL LITERATURE 
Weingart, W. Cereus coerulescens S.-D. var. melanacanthus K. Schum. 
Monats. Kakteenk. 21: 139-140. 15 5 I91I. 
Weingart, W. Cereus monacanthus Lem. Monats. Kakteenk. 21: 157- 
160. 15 O 19g1t. 
Weiss, F.E. The British Assocation for the Advancement of Science. 
Address to the botanical section. Science II. 34: 464-480. 13 O 
I9II. 
Wernham, H.F. Supplemental note on Hamelia. Jour. Bot. 49: 346. 
N 1911. 
Hamelia Brittoniana sp. nov. described. 
Wieland, G. R. On the Williamsonian tribe. Am. Jour. Sci. IV. 32: 
433-466. f. 1-78. D 1911. 
Wieland, G. R. Recent contributions on cycadophytans. Am. Jour. 
Sci. 1Vs 32: 473-476: f,: 20... D 1911. 
Williams, I. C. Additional facts about the chestnut blight. Science 
LL 34: 904; 9OS-> 24-IN IGE, 
Wilson, E.H. New Chinese plants. Horticulture 14: 626-628. 4N 
IQII. 
Wilson, E.H. The kingdom of flowers. An account of the wealth of 
trees and shrubs of China and of what the Arnold Arboretum, with 
China’s help, is doing to enrich America. Nat. Geog. Mag. 22: 
1003-1035. N 1911. [Illust.] 
Includes numerous photographs of named Chinese trees, etc. 
Wilson, W. B. A rare Mexican cycad. Trans. Kansas Acad. Sci. 
23, 24: 132-137. Ja 1911. [Illust.] 
Dioon edule. 
Winslow, E. J. Lycopodium flabelliforme. Am. Fern Jour. 1: 141- 
143. 29 N I9gItI. 
Witton, H. B. Diatoms. What they are and where they are found 
Jour. and Proc. Hamilton Assoc. Sci. 25, 26: 38-46. 1910. 
Wolff, H. Unmbelliferae-Apioideae-Bupleurum, Trinia et reliquae 
Ammineae heteroclitae. Pflanzenreich 478: 1-214. f. 1-24. 2Au 
1910. , 
Wooster, L. C. The origin and development of plant and animal 
instincts. A theory of evolution in which life is the central agent. . 
Trans. Kansas Acad. Sci. 23, 24: 227-231. Ja 1911. 
Zon, R., & Briscoe, J. M. Eucalypts in Florida. U.S. Forest Serv. 
Bull. 87: 1-47. pl. 1-5 +f. r. 29 Ap 1911. 
Zon, R., & Graves, H. S. Light in relation to tree growth. U. S. 
Forest Serv. Bull. 92: 1-59. f. I-10. 30 Je 1911. 
