592 INDEX TO AMERICAN BOTANICAL LITERATURE 
Arthur, J. C., & Kern, F. D. The rediscovery of Peridermium pyri- 
forme Peck. Science II. 38: 311, 312. 29 Au 1913. 
Babcock, E.B. A new variety of Juglans californica Watson. Science 
II. 38: 89, 90. 18 JI 1913. 
Bachmann, F. M. The origin and development of the apothecium in 
Collema pulposum (Bernh.) Ach. Archiv Zellforschung 10: 369- 
430. pl. 30-36. 8 Jl 1913. 
Becker, M.A. The preservation of our wild fowers. Jour. N. Y. Bot. 
Gard. 11: 169-175. Jl 1910. 
Berry, E. W. A fossil flower from the Eocene. Proc. U. S. Nat. Mus. 
45: 261-263. pl. 21. 13 Je 1913. 
Black, C. A. The morphology of Riccia Frostii Aust. Ann. Bot. 27: 
511-532. pl. 37, 38. -Jl 1913. 
Chrysler, M. A. The origin of the erect cells in the phloem of the 
Abietineae. Bot. Gaz. 56: 36-50. f. 1-12. 16 Jl 1913. 
Cockerell, T. D. A. A wine-red sunflower. Science II. 38: 312, 313- 
29 Au 1913. 
Collins, G. N. Mendelian factors. Science II. 38: 88, 89. 18 J! 1913. 
Collins, G. N., & Kempton, J. Inheritance of waxy endosperm in 
hybrids of Chinese maize. IV*. Conférence Internat. Génétique, 
Paris 191%: 347-357. 1913. 
Cook, M. T., & Taubenhaus, J. J. The relation of parasitic fungi to 
the contents of the cells of the host plants. (II. The toxicity of 
vegetable acids and the oxidizing enzyme). Delaware College Agr. 
Exp. Sta. Bull. 97: 3-53. f. 1-43. 1 J! 1912. 
Copeland, E. B. Some ferns of northeastern Migtsaas Leaflets 
Philip. Bot. 5: 1679-1684. 28 Je 1913. 
Includes Angiopteris Elmeriana, Cyathea Warihon, C. dimor photricha, C. cinerea, 
Dryopteris urdanetensis, and Athyrium propinquum, spp. nov ; 
Copp, G. G. The protection of native plants. Jour. N. Y. Bot. 
Gard. 7: 26-29. F 1906. 
Cosens, A. A contribution to the morphology and biology of insect 
galls. Univ. Toronto-Stud. Biol. 13: 297-387. pl. 1-13. 1912. 
Crandall, C. S.! Mosquitoes pollinating orchids. Science II. 38: 51: 
11 Jl 1913. 
Darbishire, O. V. Lichens collected during the 2d Norwegian Polar 
Expedition in 1898-1902. 1-68. pl. 1, 2, Kristiania 1909. Rep- 
Sec. Norw. Arct. Exped. ‘‘Fram” 1898-1902. No. 21. 
Davis, B. M. Genetical studies on Oenothera—IV. The behavior of 
