American Heritage® Dictionary of the English Language, Fourth Edition
- n. The arrangement of the young leaves within a bud.
Century Dictionary and Cyclopedia
- n. In botany, the disposition of the nascent leaves within the bud, not with reference to their insertion, but with regard to their folding, coiling, etc., taken singly or together. It is also called
prefoliation. and the word corresponds to the terms estivation and prefloration, which indicate the manner in which the parts of the flower are arranged in the flower-bnd. For the particular forms of vernation, see the terms plicate, conduplicate, inflexed, convolute, involute, revolute, and circinate.
- n. The appearance of new leaves.
- n. botany The arrangement of multiple organs (such as leaves and flower parts) within a bud.
- n. botany Arrangement of only leaves within the bud; prefoliation.
GNU Webster's 1913
- n. (Bot.) The arrangement of the leaves within the leaf bud, as regards their folding, coiling, rolling, etc.; prefoliation.
- n. (botany) the arrangement of young leaves in a leaf bud before it opens
- New Latin vērnātiō, vērnātiōn-, from Latin vērnātus, past participle of vērnāre, to flourish, from vērnus, vernal; see vernal. (American Heritage® Dictionary of the English Language, Fourth Edition)
“The development of plant shoots from the bud is called vernation (Latin,”
“The humidity which may appear connected with the rapid evaporation in these countries, and which obtains? in the vicinity of all bodies of water, may account for the appearance here of Arundo, etc. All genuine aquatic types have leaves involute in vernation?”
“Is the gyrate vernation of any ferns comparable to the form of certain shells, to which (at least Mollusca) ferns are supposed to be analogous.”
“= A form of vernation in which the leaf is rolled inward from its edges.”
“In vernation the apex of each segment is bent down with a slight curve inward.”
“Their exquisite symmetry of form, their frequent finely cut borders, and their rich shades of green combine to make them objects of rare beauty; while their unique vernation and method of fruiting along with their wonderful mystery of reproduction invest them with marked scientific interest affording stimulus and culture to the thoughtful mind.”
“Planchon  figures and describes a flower of _Drosera intermedia_ that had passed into a chloranthic condition, excepting the calyx, which was unchanged; the petals, like the valves of the ovary, were provided with stipules, and were circinate in vernation.”
“Its leaves, however, had neither the vernation nor the pellucid dots of Myrtaceous trees.”
“A term in vernation or foliation, fignify - ing that the fides of the nafcent leaves are rolled together like a fcroll: as in Arum, Piper, So - iidagOy Brajfica, Primus, Gram in a or Grafts. —.”
“I was immediately struck with the resemblance of those organs, called ramenta, to what are fairly assumed to be the male bodies, in certain other families of the same grand division; and I at once came to the conclusion, that the barren fronds, were barren, because almost destitute of these ramenta; and that as these ramenta were confined to the base of the stalk, that is, to the part below its first ramification, an obvious necessity existed for the peculiar nature of the vernation.”
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