anatropous


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Related to anatropous: anatropous ovule

anatropous

[ə′na·trə·pəs]
(botany)
Having the ovule fully inverted so that the micropyle adjoins the funiculus.
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References in periodicals archive ?
The seeds, which are remarkably well preserved, are anatropous, ca.
Microdiptera (in the broadest sense) is morphologically and anatomically similar to Decodon, sharing the following characteristics: anatropous ovules, bitegmic seeds with inner lignified layers typical of the Lythraceae, a germination valve on one side of the seed, and extensive spongy tissue through which the raphe runs from near the hilum to the chalaza.
5 mm, from anatropous ovules, have a chalaza at the broad end of the seed and hilum at the narrow end.
Gynoecium bicarpellate, syncarpous, superior, usually unilocular and oriented in the antero-posterior plane; surrounded by nectary-disk or distinct glands; placentation parietal (this occasionally bifid) or rarely free axile, seldom bilocular with axile placentation: style simple and terminal, with entire or bilobed, papillate stigma, rarely style wanting and stigmas decurrent on ovary (Lomatogonium); ovules usually numerous and anatropous.
Gynoecium bicarpellate, syncarpous, superior, bilocular (with apical part of partitioning imperfect); style terminal with short bilobed stigma; ovules numerous and anatropous.
Gynoecium 2(-3-9)-merous, usually bicarpellate, syncarpous, inferior, rarely semi-inferior (Synaptantha) or superior (Gaertnera and Pagamea); ovary with as many locules as carpels (in which case placentation is axile or a derivative), seldom unilocular (Gardenia) (in which case placentation is parietal) or pseudomonomerous (Theligonum): style usually one and slender or styles free (Galium), rarely basilateral (Theligonum), or even missing (Tetralopha): stigma capitate or lobed: ovules 1 to many in each locule; anatropous to hemitropous, or campylotropus (Theligonum); solitary, basal, without integumentary tapetum.