. Biologisches Zentralblatt. Biology. Harris, Correlatiou in the Inflorcscence of Sanguinaria. 029 sichtlich des Inhaltes ist dagegen „Ergologie" ein besserer Name als „Ökologie" (im weiten Sinne) für eine Wissenschaft, die so vielerlei Lebensvorgänge, Einrichtungen, Anpassungen und sonstige Leistungen der Pflanzen erforschen und darstellen soll. Correlation in the Inflorescence of Sanguinaria. By J. iVrthur Harris. The subject of correlation has received considerable attention from botanists. GoebeP) was a pioneer in the consideration of these Problems, and nearly ten years ago De V
. Biologisches Zentralblatt. Biology. Harris, Correlatiou in the Inflorcscence of Sanguinaria. 029 sichtlich des Inhaltes ist dagegen „Ergologie" ein besserer Name als „Ökologie" (im weiten Sinne) für eine Wissenschaft, die so vielerlei Lebensvorgänge, Einrichtungen, Anpassungen und sonstige Leistungen der Pflanzen erforschen und darstellen soll. Correlation in the Inflorescence of Sanguinaria. By J. iVrthur Harris. The subject of correlation has received considerable attention from botanists. GoebeP) was a pioneer in the consideration of these Problems, and nearly ten years ago De Vries^) named corre- lation as one of the most important problems in future evolutio- nary work, and emphasized the necessity for the use of quantitative methods. The purpose of this note is to state in non-technical terms the results of a biometric study of the inflorescence of the Blood Root, Sanguinaria Canadensis. The data for two series, of 1000 and 400 inflorescences, are presented and analyzed in detail elsewhere^) and here only the chief points will be touched npon. In Sanguinaria, a monotypic genus of the Papaveraceae, the fruit is borne on a slender pedicel sent up from the root-stalk. It is one-celled with two parietal placentae upon which the ovules are arranged in two or more irregulär Diagrani of Upper portion of iiifloresccDce. The fruit is openeil un one side, shovving the two placentae with the luatured seeds and the abortive ovules. Our problem is to measure the degree of interdependence of the several parts or characters of the inflorescence. The relationships we shall record in terms of the coefficient of correlation. l)Goebel,K. ürganographie der Pflanzen, p. 177—186, 1898. Also the literature cited there. 2) De Vries, H. Die Mutationstheorie. Vol. I, p. 113, 1901. 3) Harris, J, Arthur Biometrika. Vol. VII, 1910. In Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabi
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