anatropous


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Related to anatropous: anatropous ovule

a·nat·ro·pous

 (ə-năt′rə-pəs)
adj. Botany
Completely inverted so that the micropyle is facing downward and situated near the base of the funiculus: an anatropous ovule.

anatropous

(əˈnætrəpəs)
adj
(Botany) (of a plant ovule) inverted during development by a bending of the stalk (funicle) attaching it to the carpel wall. Compare orthotropous
[C19: from ana- (inverted) + -tropous]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.anatropous - (of a plant ovule) completely invertedanatropous - (of a plant ovule) completely inverted; turned back 180 degrees on its stalk
plant life, flora, plant - (botany) a living organism lacking the power of locomotion
amphitropous - (of a plant ovule) partly inverted; turned back 90 degrees on its stalk
References in periodicals archive ?
The fruits resemble those of Chloranthaceae in having a single pendent seed and a barrellike shape suggestive of ascidiate development, but the seed is anatropous, the most common type in angiosperms, rather than orthotropous as in Chloranthaceae.
Both species have bitegmic and anatropous ovule, obturator, trichomes and a resinuous gland, which is composed of flange-like structures that are modified bractlets (Webster and Webster, 1972).
The ovule is anatropous, presenting micropyle, funicle, inner and outer integument and nucellus in both floral types.
The ovary is inferior, bearing a single anatropous ovule with a long tube-like style.
The results are showed that Yanshanzaofeng' was diclinous with polycarpous compound pistils axile placentas and commonly two anatropous ovules in each loculament.
The anatropous ovule, a characteristic not previously reported for the genus Syagrus had already been reported for other genera of the Tribe Cocoseae, with Attalea and Cocos (Uhl and Moore, 1971; Guevara and Jauregui, 2008).