单词 | dichogamy |
释义 | dichogamyn. Botany. The maturation of the stamens and pistils of a hermaphrodite plant or flower at different times, preventing self-pollination. ΚΠ 1805 tr. K. L. Willdenow Princ. Bot. & Veg. Physiol. §289 314 Mr Sprengel..discovered two principal ways in which seeds are impregnated, to wit, Dichogamy [Ger. Dichogamie], (Dichogamia), and Homogamy, (Homogamia). 1862 C. Darwin in Life & Lett. (1887) III. 303 What old C. K. Sprengel called dichogamy and which is so frequent in truly hermaphrodite groups. 1904 A. B. Rendle Classif. Flowering Plants I. iv. 158 A very frequent means for preventing self-pollination is known as dichogamy. 1957 Bot. Rev. 23 140 One must be careful to determine whether the dichogamy described (or observed) for a species refers to the individual flower or to the individual organism. 2008 Jrnl. Torrey Bot. Soc. 135 306/1 There are no previous reports of dichogamy in the available literature on Convolvulaceae. This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022). < n.1805 |
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