258 INDEX TO AMERICAN BOTANICAL LITERATURE 
Britton, E. G., & Williams, R.S. Central American mosses. Torreya 
14: 24-31. f. I..:9 F 1914. 
Includes Macromitrium palmense R. S. Williams, sp. nov. and Isodrepanium 
E. G. Britton, gen. nov. 
Britton, N. L. Studies of West Indian plants—V. Bull. Torrey Club 
41: 1-24. 26F 1914. 
Includes twenty-six new species in Rhynchospora (1) Pithecolobium (7), Dendro- 
panax (1), Bourreria (3), Aster (2), Lasiocroton (1), Varronia (1), Jacobinia (1), 
Copernicia (2), Anneslia (1), Belairia (1), Meibomia (1), Kieseria (1) and Portlandia 
(3). 
Broadhurst, J. Winter changes in weeping willow. Torreya 14: 31, 
32. 9 F 1914. 
Bussler, F. H. Anzucht aus Samen. Monats. Kakteenk. 24: 10, 11. 
15 Ja 1914. 
Castle, W. E. The cytological time of mutation in tobacco. Science 
II. 39: 140. 23 Ja 1914. 
Cockerell, T. D. A. A new Helianthus from Colorado. Proc. Biol. 
Soc. Washington 27: 5-8. 2 F 1914. 
Helianthus coloradensis sp. nov. 
Collins, F.S. Drifting algae. Rhodora 16: 1-5. 2 Ja 1914. 
Collins, G. N. A drought-resisting adaptation in seedlings of Hopi 
maize. Jour. Agr. Research 1: 293-302. pl. 29-32 +f. I-2. 10 
Ja 1914. 
Craib, W. G.  Erythrina pulcherrima. Curt. Bot. Mag. IV. 10: I. 
8532. Ja1or4. 
A plant from South America? 
Davidson, A. The oldest known tree. Bull. S. California Acad. Sci. 
43: 14-16. Ja 1914. 
Dudgeon, W. A method of handling material to be imbedded in 
paraffine. Bot. Gaz. 57: 70-72. f. 1. 16 Ja 1914. 
Eames, E. H. Scirpus occidentalis and Aster ptarmicoides in Connecti- 
cut. Rhodora 16: 19, 20. 2 Ja 1914. 
East, F. M., & Hayes, H. K. A genetic analysis of the changes pro- 
duced by selection in experiments with tobacco. Am. Nat. 48: 
5-48. f. 1-9. Ja 1914. 
Elkins, M.G. The maturation phases in Smilax herbacea. Bot. Gaz. 
57: 32-52. pl. 4-6. 16 Ja 1914. 
Fernald, M. L. The alpine bearberries and the generic status of 
Arctous. Rhodora 16: 21-33. F 1914. 
Fernald, M. L. The North American representative of Arenaria 
ciliata. Rhodora 16: 43, 44. 2 F 1914. 
Arenaria cylindrocarpa sp. nov. 
