656 E. Schiemann: Entstehung der Arten, Variation usw. 1915 und 1916. [26 



445. Harris, J. A. De Vriesian Mutation in the garden bean 

 Phascolüs vulgaris. (Proc. Nation. Acad. Sciences U. S.A. 2, 1916, p. 317 

 bis 319.) 



446. Hayes, H. K. Tobacco Mutations. (.Journ. of Heredity 6, 

 1915, p. 73-78.) - Ref. Bot. Ctbl. 12$), 191.^), p. 633. 



447. Heckel, E. Sur le Solanum Caldasii Kuntli (S. guaranili- 

 cii/n Hassler) et sur la mutation gennnaire culturale de ses parties 

 souterraincs. (C. R. Acad. Sei. Paris I, 160, 1915, p. 24.) 



448. JuHgclson, A. Intoxication chimique et mutation du 

 mals. (C. R. Acad. Sei. Paris 160, 1915, p. 481-483.) - Ref. Bot. Ctbl. 

 137, 1918, p. 82. 



c) Das Oenotheraproblem. 



(Vgl. auch Abschnitt 5a und Nr. 424, 776.) 



449. AtkiiisoB, ft. F. Sorting and blending of ,,unit characters" 

 in the zygote of Oenothera witli twin and triplet hybrids in the 

 first generation. (Zeitschr. f. ind. Abst.- u. Vererbungslehre 16, 1916, 

 p. 193-238, 6 Textfig.) 



450. Bartlett, H. H. Additional cvidence of mutation iw Oeno- 

 thera. (Bot. Gay. 59, 191.5, p. 81-123, 17 Fig.) - Ref. Bot. Ctbl. 135, 1917, 

 p. 279. 



4 51. Bartlett, H. H. Masr; nuitatiou in Oenothera pratincola. (Bot. 

 Gaz. 60, 1915, p. 425-456, 15 Textfig.) - Ref. Z. f. i. A. u. V. 21, 1919, p. 134 

 u. Bot. Ctbl. 135, 1917, p. 279. 



452. Bartlett, H. H. Mutation en masse. (Amer. Naturalist 49, 

 1915, p. 129-139, 9 Textfig.) 



453. Bartlett, H. H. The mutations oi Oenothera stenomcres. (Amer. 

 Journ. Bot. 2, 1915. p. 100-109. 4 Textfig.) - Zit. Bot. Ctbl. 129, 1915, p. 83. 



454. Cookorell, T. D. A. Variation in Oenothera hewetti. (Science, 

 N. S. 42, 1915, p. 908-909.) - Ref. Bot. Ctbl. 135, 1917, p. 177. 



455. Davis, B. M. The test of a pure species oi Oenothera. (Proc. 

 Amer. Phil. Soc. 54, 1915, p. 226-245.) - Ref. Bot. Ctbl. 135, 1917, p. 149. 



456. Davis, B. M. A method of obtaining complete germi- 

 nation of seeds in Oenotheraa.i\A of recording the residue of sterile 

 seedlike structures. (Proc. Nation. Acad. Sc. Washington 1, 1915, p. 360 

 bis 363.) - Ref. Bot. Ctbl. 135, 1917, p. 98. 



457. Davis, B. M. Professor de Vries on the probable origiu 

 of Oenothera Lamarckiana. (Amer. Naturalist 49, 1915, p. 59 — 64.) — Ref. 

 Bot. Ctbl. 135, 1917, p. 149. 



458. Davis, B. M. Additional evidence of mutation in Oeno- 

 thera. (Amer. Naturalist 49, 1915, p. 702-706.) - Ref. Bot. Ctbl. 131, 1916, 

 p. 357. 



459. Davis, B. M. Hybrids of Oenothera biennis and Oe. franciscana 

 in the first and second generations. (Genetics 1, 1916, p. 197 — 251, 

 26 Textfig.) - Ref. Bot. Ctbl. 138, 1918, p. 327 u. Z. f. i. A. u. V. 21, 1919, 

 p. 136. 



460. Davis, B. M. Oenothera Neo-Lamarckiana, hybrid of 0. Francis- 

 cana Bartlett and O.ö/enn/s Linnaeus. (Amer. Naturalist 50, 1916, p. 688 

 bis 696.) - Ref. Bot. Ctbl. 137, 1918, p. 52 u. Z. f. i. A. u. V. 21, 1919. 

 p. 138 



