Neue Litteratur. 147 



y, Varietäten, üesceiideiiz, Hybriden. 

 Cf. VI. Pearl and Surface, Peklo. 



Fernald, M. L. 1914. The American Variation of Stellaria borealis. 

 (Rhodora. XVI. p. 144—151.) 



Fernald, M. L. 1915. Two variations of Silene antirrhina. (Rhodora. 

 XVII. p. 96-97.) 



Gertz, 0. 1915. En variationsstatistisk undersökning ä Anthemis tinc- 

 toria L. (Svensk bot. Tidskr. IX. p. 160—170. 2 F.) 



Gilbert, A. W. 1915. Heredity of color in Phlox Drummondii. (Journ. 

 Agr. Res. IV. p. 293-302. 3 pl.) 



Goodspeed, Th. H. 1915. Parthenogenesis, parthenocarpy and phe- 

 nospermy in Nicotiana. (Univ. California Publ. Bot. V. p. 249 — 

 272. 1 pl.) 



Greenman, J. M. 1915. Morphology as a factor in determining rela- 

 tionships. (Amer. Journ. Bot. II. p. 111 — 115.) 



Harris, J. A. 1915. On a criterion of substratum homogeneity (or 

 heterogeneity) in field experiments. (Amer. Nat. IL. p. 430—454.) 



Hedrick,: ü. F. and R. D. Anthony. 1915. Inheritance of certain Cha- 

 racters of grapes. (Journ. Agr, Res. IV. p. 315—330.) 



Hromädko, J. 1915. Ueber den Einfluss der Entfernung einzelner 

 Pflanzenindividuen auf die Korrelationserscheinungen bei der 

 Zuckerrübe. (Vestni'k V. sjez. ces. pnr. 1915. p. 411. Bühmisch.) 



Johnson, D. S. 1915. Sexuality in plants. (Journ. of Heredity. VI. p. 

 3—16. 10 f.) 



Kenoyer, L. A. 1914. Notes on Variation in Micranthes texana. 

 (Proc. Iowa Ac. Sc. XXI. p. 123—124. 1 pl.) 



Kern, F. D. 1915. The genetic relationship of parasites. (Amer. 

 Journ. Bot. II. p 116—131.) 



Lipps, H. 1913. Ueber Strukturänderungen von Pflanzen in geänder- 

 tem Medium. (Göttingen 1913. 8<^. 35 pp.) 



Lotsy, J. F. 1915. Het tegenwoordige standpunt der evolutie-leer. 

 [The present Standpoint of Evolution]. (Den Haag, M. Nijhoff. 

 1915. kl. 80. VIII, 121 pp.) 



Lotsy, J. F. 1915. Kreuzung oder Mutation die mutmassliche Ur- 

 sache der Polymorphie? (Zschr. ind. Abst.- u. Verber. -Lehre. XIV. 

 p. 204—225.) 



Mac Dougal, D. T. 1915. The experimental modification of germ 

 plasm. (Ann. Missouri Bot. Card. II. p. 253-274. 4 f.) 



Nieuwland, J. A. 1913. Seedless oranges, a historical note. (Amer. 

 Midland Nat. III. p. 76.) 



Nilsson, N. Heribert. 1915. Eliminirung der positiven Homozygoten 

 bezüglich der Rotnervigkeit bei Oenothera Lamarckiana. (Bot. 

 Not. 1915. 3 pp.) 



Popenoe, F. 1915. Genealogy and eugenics. (Journ. of Heredity. VI. 

 p. 372—383.) 



Rasmuson, H. 1915. Zur Vererbung der Blütenfarben bei der Balsa- 

 mine. (Bot. Not. 1915. 5 pp.) 



Saunders, E. R. 1915. The double stock, its history and behaviour. 

 (Journ. r. hört. Soc. XL. p. 450-472.) 



Schreiner, 0. and J. J. Skinner. 1915. Specific action of organic Com- 

 pounds in modifying plant characteristics; methyl glycocoU ver- 

 sus glycocoll. (Bot. Gaz. LIX. p. 445—463. 4 f.) 



Servit, M. 1915. Die Quetelet'sche Kurve und das Korrelationschema 

 in der Veredelungspraxis. (Vestni'k V. sjez. ces. prir. 1915. p. 353.) 



