单词 | ranalian |
释义 | Ranalianadj. Botany. Of or relating to the (former) order Ranales, comprising dicotyledonous families characterized by hypogynous, apocarpous flowers having free, spirally inserted parts and an indefinite number of stamens; derived from or characteristic of this order.The order Ranales comprised 19 families, divided into 4 suborders; it was later split into the orders Ranunculales, typified by the family Ranunculaceae, and Magnoliales, typified by the family Magnoliaceae. ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > flower or flowering plant > [adjective] > characterized by pollination > plant or class characterized by sex of flowers ranal1836 Ranalian1909 1909 C. E. Bessey in Science Jan. 98/1 As I conceive this immense group, it is rather sharply divided into three secondary phyla which diverge from a common point of beginning—the so-called ‘Ranalian plexus’. 1926 Jrnl. Bot., Brit. & Foreign 64 83 In following the lead of those who assume a common Ranalian origin for Angiosperms, Mr. Hutchinson has burnt his boats. 1959 A. S. Foster & E. M. Gifford Compar. Morphol. Vascular Plants xviii. 480 It is only by such laborious procedures that we shall be able to test the importance of recent investigations on ranalean families. 1962 L. D. Benson Plant Taxon. 7 (caption) The Ranalian flower (Magnolia grandiflora, representing the order Ranales, which retains more primitive features than the flower of any other order of the flowering plants). 1994 W. B. Zomlefer Guide Flowering Plant Families 297/2 The Alismataceae have been cited as an example of a ‘primitive’ group of extant monocots due to the actinomorphic, hypogynous flowers with many free stamens and carpels..—character states similar to those of the so-called Ranalian dicots, such as the Ranunculaceae and Nymphaeaceae. 2002 R. C. Keating in M. Gregory & D. F. Cutler Anat. Monocotyledons IX. 27/2 In a wider survey of the Magnoliidae, also using the rbcL gene, Qiu et al...agreed that the monocots are monophyletic and nested among ranalian orders. This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022). < adj.1909 |
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