INDEX TO AMERICAN BOTANICAL LITERATURE 239 
Dutton, D. L. © Buxbaumia indusiata Brid., from Brandon, Vermont. 
Bryologist 24: 8. 22 Mr 1921. 
East, E. M., & Jones, D. F. Genetic studies on the protein content of 
maize. Genetics 5: 543-610. f. 1-8. N 1920. 
Edgerton, C. W., & Moreland, C. C. Eggplant blight. Louisiana 
Agr. Exp. Sta. Bull. 178: 1-44. f. 1-18, Ja 1921. 
Fernald, M. L. The North American representatives of Scirpus 
cespitosus. Rhodora 23: 22-25. 8 Mr 1921. 
Includes Scirpus cespitosus var. delicatulus var. nov. from Newfoundland and 
Fischer, J. Zur Entwicklungsgeschichte und Morphologie der Veron- 
icabliite. Zeitschr. Bot. 12: 113-161. f. I-23. 1920. 
Fries, R. E. Die Myxomyceten der Juan Fernandez Inseln. Nat. 
Hist. Juan Fernandez & Easter Isl. 2: 55-58. 1920. 
Frye, T. C. Plant migration along a partly drained lake. Publ. 
Puget Sound Biol. Sta. 2: 393-397. 30 D 1920. 
Gericke, W. F. Influence of temperature on the relations between 
nutrient salt proportions and the early growth of wheat. Am. Jour. 
Bot. 8: 59-62. 19 Mr 1921. 
Grier, N. M. Notes on Hemerocallis, 11. Torreya 21: 12, 13. F 1921. 
Gundersen, A. Plant families: a plea for an international sequence. 
New Phytol. 19: 264-271. 31 Ja 1921. 
Haan, H. R. M. de. Contribution to the knowledge of the morpho- 
logical value and the phylogeny of the ovule and its integuments. 
Recueil Trav. Bot. Néerlandais 17: 219-324. 1920. 
Hall, H. M. Statistical studies. Carnegie Inst. Washington Year 
Book 19: 348. 1921 ‘ 
Studied Artemisia and Chrysothamnus. _ 
Hall, H. M. Taxonomy of the Madieae. Carnegie Inst. Washington 
Year Book 19: 347. 3 F 1921. 
Notes progress of work. ' 
Hall, H. M., & Long, F. Rubber plants. Carnegie Inst. Washington 
Year Book 19: 365, 366. 3 F 1921. 
Hansen, A.A. Our disappearing wild plants. Science IT. 53: 178-180. 
25 F 1921. 
Discusses flora of District of Columbia. 
- Hansen, A.A. Recent Pennsylvania weeds. Ann. Rep. Pennsylvania 
State Coll. 1916-17: 317-328. 1919. [Illust.] 
