protogynous, a.
(prəʊˈtɒdʒɪnəs)
[ad. G. protogynisch (F. H. G. Hildebrand Die Geschlechter-Vertheilung bei den Pflanzen (1867) 17), f. proto- + -gynous.]
1. Bot. = proterogynous a. 1: opp. to protandrous. Hence protogyny (prəʊˈtɒdʒɪnɪ) = proterogyny: opp. to protandry.
| 1870 A. W. Bennett in Jrnl. Bot. VIII. 315 The terms Protandry and Protogyny used by Hildebrand to express, in the one case the development of the stamens before the pistils, in the other case the development of the pistil before the stamens, are so convenient and expressive that I have adopted them in this paper. Ibid. 320 Chlora perfoliata..is protogynous. 1875 Bennett & Dyer Sachs' Bot. 812 Dichogamous Flowers are either protandrous or protogynous. Ibid. 813 In protogynous flowers the stigma is receptive before the anthers in the same flower are mature. 1896 Henslow's Wild Flowers 56 Sometimes..the stigmas mature first. This is called protogyny. 1909 J. R. A. Davis tr. Knuth's Handbk. Flower Pollination III. 221 The flowers [of Bartsia alpina] in Greenland were found by Warming to be feebly protogynous, the anthers dehiscing soon after the maturation of the stigma. 1940 Nature 30 Mar. 485/2 Protandry, protogyny, special floral arrangements and other devices could also be listed. 1972 Science 12 May 601/2 In these plants, dioecism, protandry, protogyny..are common. 1973 Nature 23 Mar. 275/2 Some cross-pollination may occur because the flowers are protogynous and have some insect visitors. |
2. Zool. = proterogynous a. 2.
| 1931 F. A. E. Crew in W. Rose Outl. Mod. Knowl. 285 In quite a number of forms protandrous..or protogynous..hermaphroditism is the rule, it being usual for an individual first to function as a female or male, and then, later, as a male or female. 1973 Nature 12 Oct. 333/1 This system is an illustration of the phenomenon of social determination of phenotype, which includes social control of sex reversal in protogynous fishes. |