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III.—Quantitative Evolution. V. The Free and Apparent Dp‐ages of Compositæ

Published online by Cambridge University Press:  15 September 2014

J. Small
J. Small
Affiliation:
Department of Botany, Queen's University, Belfast
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Extract

The average ages in doubling periods (Dp‐ages) of the tribes and subtribes of Compositæ have been collated with geological time (Small, 1937, Q.E. II), but the Dp‐ages of individual tribes and sub‐tribes show considerable variation within each of the geological periods. When plotted as Dp‐ages against a time‐scale the tribes and the sub‐tribes show rather scattered positions, and the sub‐tribes within each tribe follow rather zigzag lines instead of being points on a straight line for each tribe.

Type
Proceedings
Information
Proceedings of the Royal Society of Edinburgh , Volume 58 , 1939 , pp. 24 - 31
Copyright
Copyright © Royal Society of Edinburgh 1939

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References

References to Literature

Bentham, G., 1873. “Notes on the Classification, History, and Geographical Distribution of the Compositæ,” Journ. Linn. Soc. Bot., vol. xiii.Google Scholar
Collins, J. L., 1921. “The Sudden Appearance of Far‐distant Ancestral Types of Inflorescence,” Journ. Heredity, vol. xii, no. 3, p. 122.Google Scholar
Fisher, R. A., 1930. Statistical Methods for Research Workers.Google Scholar
Hutchinson, J., 1916. “Aquatic Compositæ,” Gardeners' Chronicle, vol. lix, p. 305.Google Scholar
Lindley, J., 1839. An Introduction to Botany.CrossRefGoogle Scholar
Masters, M. T., 1869. Vegetable Teratology.Google Scholar
Parkin, J., 1914. “The Evolution of the Inflorescence,” Journ. Linn. Soc., vol. xlii, p. 511.Google Scholar
Rendle, A. B., 1925. The Classification of Flowering Plants, vol. ii.Google Scholar
Small, J., 1919. The Origin and Development of Compositœ: New Phytologist Reprint, C.U.P.CrossRefGoogle Scholar
Small, J., 1937. “Quantitative Evolution. II. Compositæ Dp‐ages in Relation to Time,” Proc. Roy. Soc. Edin., vol. lvii, pp. 215–220.Google Scholar
Small, J., 1937. “Quantitative Evolution. III. Dp‐ages of Gramineæ,” Proc. Roy. Soc. Edin., vol. lvii, pp. 221–227.Google Scholar
Small, J., 1938. “Quantitative Evolution. IV. Deductions from the BAT Curve,” Proc. Roy. Soc. Edin., vol. lviii, pp. 14–23.Google Scholar
Small, J., and Johnston, I. K., 1937. “Quantitative Evolution in Compositæ,” Proc. Roy. Soc. Edin., vol. lvii, pp. 26–54.Google Scholar
Trow, A. H., 1916. “Nodes in Senecio vulgaris and its Segregates,” Journ. Genetics, vol. vi, p. 18.Google Scholar
Yapp, R. H., 1923. Botany, C.U.P.Google Scholar
Yule, G. Udny, 1924. “A Mathematical Theory of Evolution,” Phil. Trans. Roy. Soc., vol. ccxiii, B, pp. 21–87.Google Scholar