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Growing straight, so that the micropyle is at the end opposite the stalk. Used of an ovule.
(Botany) (of a plant ovule) growing straight during development so that the micropyle is at the apex. Compare anatropous
or•thot•ro•pous(ɔrˈθɒ trə pəs)
(of an ovule) straight and symmetrical, with the chalaza at the evident base and the micropyle at the opposite extremity.
[1820–30; < New Latin orthotropus]
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|Adj.||1.||orthotropous - (of a plant ovule) completely straight with the micropyle at the apex|
campylotropous - (of a plant ovule) curved with the micropyle near the base almost touching its stalk