staminode

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staminode

a rudimentary, infertile stamen that may be reduced in size.
References in periodicals archive ?
In tissue culture-derived populations of date palm it has been frequently observed that despite standard practice of pollination, besides female carpels, staminodes also grow to form a cluster of 3-9 tiny seedless fruit-like structures (Fig.
In Coehlospermaceae, the androecium in Amoreuxia is onesided, with staminodes on one side (Poppendieck, 2003).
Frances Rivis' has attractive dark buds, producing large, nodding bell-shaped flowers in deep blue flushed violet with blue staminodes.
argentea in the rather laxer, more graceful panicle, with longer, more flexuous, nodding branches, somewhat smaller spikelets, more delicate glumes, and in the longer, very slender staminodes of the fem.
In the Zingiberaceae and Costaceae, 24 (Zingiberaceae) or 5 (Costaceae) staminodes fuse together to form a novel structure, the staminodial labellum (Kirchoff, 1988).
Pistillate inflorescences capitate, arranged in 2-5 racemes, each with 4-7 flowers, peduncles to 20 mm long, congested in anthesis, expanded after fertilization, pedicels short < 1mm long; involucre well differentiated 1-2 mm long, sacciform to urceolate in shape, very thick, with 4-5 lanceolated lobes < 1 mm long, bicolor, the basal half darker than the upper; stigma somewhat exserted, lobed and decurrent; lower part of the perianth consists of 4 lanceolate involucral bracts 1 mm long; indumentum densely short velutinous; no staminodes are present.
Monogynanthus is divided in two sections, each of them defined from the fruit (epicarp splitting or not): (i) Munbaca with two subsections, Eumunbaca and Mumbacucu, these defined by characters of the pistillate flower and fruit, and (ii) Ayri with two subsections, Symphyodon and Hexodon, defined by the staminodes either connected and forming a staminodial ring or reduced to six free teeth.
1A) have well-developed ovaries with three white stigmatic lobes, the six staminodes rest over broad filaments and consist of minute globose structures; staminate flowers have six stamens with dorsifixed green anthers and a rudimentary empty pistillode with three erect stigma remnants (Fig.
3 mm long; staminodes six, rose-colored, laminar at the base, linear-triangular, ca.
A typical palm flower is small (1-2 cm), with 3 imbricate sepals, 3 valvate petals, six stamens or staminodes, and 3 uniovulate carpels or a trifid pistillode.