prefoliationn.
/priːˌfəʊlɪˈeɪʃən/, U.S. /priˌfoʊliˈeɪʃ(ə)n/ Botany. Now rare.
The arrangement of leaves within the bud (= vernation n. 1); spec. the position of the leaves in the bud in relation to each other.
ΘΚΠ
the world > plants > part of plant > leaf > [noun] > vernation or arrangement in the bud
foliation1785
vernation1793
prefoliation1829
circination1857
1829 P. Clinton tr. A. Richard New Elem. Bot. (ed. 4) i. vi. 155 This arrangement of the leaves in the bud has received the name of prefoliation.
1849 J. H. Balfour Man. Bot. §184 The arrangement of the leaves in the bud has been denominated vernation..or præfoliation..or gemmation.
1880 A. Gray Struct. Bot. iv. §2 132 Vernation and Æstivation—Præfoliation and Præfloration are etymologically better terms substituted by Richard.
1909 A. F. M. Johnson Textbk. Bot. for Students ii. 35 In describing a leaf, it is also necessary to observe the relation of the leaves to one another in the bud, or the præfoliation, as well as the way in which the individual leaves are packed in the bud, or the vernation.
1945 W. O. Howarth & L. G. G. Warne Lowson's Textbk. Bot. (ed. 9) vi. 136 The form and arrangement of the young leaves in the bud is termed prefoliation.
2001 Amer. Jrnl. Bot. 88 2276/2 Dugandiodendron differs from other members of Magnoliaceae in the position of the flower and in the prefoliation (arrangement or form of leaves) in the vegetative buds.
This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).
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n.1829