Index to recent Literature relating to American Botany 
Ashe, W. W. New North American Thorns. Jour. Elisha Mitchell 
Sci. Soc. 19: 10-31. 1903. 
Descriptions of 36 new species of Crataegus, 
Ashe, W. W. Studies of Brambles. Jour. Elisha Mitchell Sci. Soc. 
£9: 8, 6, . 1003. 
Three new species of Awbus from North Carolina. 
Baenitz, C. Die nordamerikanischen Scharlach-Eichen (Quercus 
rubra L., coccinea Wangenh. und palustris Duroi) und ihre Bastarde 
in den Scheitniger Anlagen in Breslau. Allgem. Bot. Zeits. 9: $1- 
Sy. 15, Je 1903. 
Bailey, J. W. An Interesting Tree. Bryologist, 6: 44, 45. 5 My 
1903. 
Bailey, L.H. The Forward Movement in Plant-breeding. Proc. Am. 
Phil. Soc. 42: 54-68. 1903. 
Best, G. N. Revision of the North American Species of Zeskea. Bull. 
Torrey Club, 30: 463-482. p/. 15, 76. 3S 1903. 
Includes descriptions of four new species and varieties. 
Bliss, M. C. The Occurrence of Two Venters in the Archegonium of 
Polytrichum juniperinum. Bot. Gaz. 36: 141, 142. f. 15 Au 1903- 
Britton, E.G. Notes on Nomenclature. II. Bryologist, 6: 42, 43: 
5 My 1903. 
Britton, E.G. West Indian Mosses in Florida. Bryologist, 6: 58-61. 
1 Jl 1903. 
Campbell, R. A Sketch of the Progress of Botany in the Nineteenth 
Century. Can. Rec. Sci. 9: 39-53. My 1903. 
Chamberlain, E. B. Buxbaumia aphylla. Bryologist, 6: 76. s 
1903. 
Chamberlain, E. B. Mounting Moss Specimens. Bryologist, 6: 75, 
76. 5S 1903. 
Chodat, R. & Hassler, E. Plantae Hasslerianae soit énumération des 
plantes récoltées au Paraguay. Bull. Herb. Boissier, Il. 3: 2397 
255- 28 F 1903; 342-355. 31 Mr 1903. 
New species in Oxypetalum, Marsdenia, Tradescantia, Commelina, Cereus (2): 
Cuphea, Combretum, Terminalia, and Alternanthera. 
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