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introrse dehiscence (black) of anthers


adj. Botany
Facing inward; turned toward the axis: introrse anthers.

[Latin intrōrsus, contraction of intrōversus, inward : intrō-, to the inside; see en in Indo-European roots + versus, past participle of vertere, to turn; see wer- in Indo-European roots.]


(Botany) botany turned inwards or towards the axis, as anthers that shed their pollen towards the centre of the flower
[C19: from Latin introrsus, contraction of intrōversus, from intro- + versus turned, from vertere to turn]
inˈtrorsely adv



Bot. turned or facing inward.
[1835–45; < Latin introrsus, contraction of *intrōversus toward the inside. See intro-, versus]
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References in periodicals archive ?
Similarities between flowers of Adenanthemum Conwentz and Itea include that the flowers are hermaphroditic, pedicellate, have a pentamerous and actinomorphic perianth with distinct whorls of sepals and petals, a valvate corolla, a haplostemonous androecium with antesepalous stamens, dorsifixed anthers with introrse dehiscence, a superior ovary (ovary position is variable in Itea), two fused styles, and a single, capitate stigma (Conwentz, 1886; Kubitzki, 2007a).
Stamens number eight to twelve, are opposite the sepals and petals, and have introrse, dorsifixed anthers that dehisce by longitudinal slits.
At maturity, a cyperaceous stamen consists of a stretched filament and a basifixed, introrse anther with two thecae, each with a longitudinal stomium between the two pollen sacs.