androecium


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Words related to androecium

a male gametoecium

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References in periodicals archive ?
The androecium is composed of five stamens that alternate with the petals.
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).
In Lamiales, the largest angiosperm clade with almost exclusively monosymmetric flowers, corolla and androecium are greatly and differentially affected.
However, floral reduction can also have the opposite result: that monosymmetry becomes less strongly expressed, such as in some Amorpheae (Fabaceae) with reduced corolla (McMahon, 2005), or Apostasia (Orchidaceae) with reduced androecium (Kocyan & Endress, 2001b).
The asymmetric androecium in Papilionoideae (Leguminosae): Definition, occurrence, and possible systematic value.
Androecium and floral nectaries of Harungana madagascariensis (Clusiaceae).
1) The androecium and gynoecium of all orchids fuse together forming a column and the majority of species release their pollen as pollinia.
For this new analysis, characters 32-60--representing floral morphology, androecium, gynoecium and fruit characters--of the Backlund and Donoghue (1996) matrix of morphological characters were used.
Floral organogenesis of Chloranthus sessilifolius, with special emphasis on the morphological nature of the androecium of Chloranthus (Chloranthaceae).
This is not surprising, given the characters that "supported" the original group: "The other line, here called the 'paleoherbs,' is characterized by anomocytic stomata, two perianth cycles, and trimery in both the perianth and the androecium (except for loss of one or both perianth cycles in Lactoris and Piperales and secondary multiplication of parts in Nympheaceae)" (Donoghue & Doyle, 1989a: 28).
Bernhard and Endress (1999) showed that the androecium initiation pattern differs in these two clades.
An organ that shows no resemblance whatsoever to a stamen may be homotopic; that is, it takes the space in the flower usually reserved for members of the androecium but lacks all resemblance with stamens on a structural ground, even being restricted to vascular bundles, or is totally different in physionomy.
Development of the inflorescence, androecium, and gynoecium with reference to palms.
During anthesis, the gynoecium is generally smaller and requires fewer resources than the androecium (Darwin, 1877; Hoffman, 1992; Flemming et al.