staminode


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Related to staminode: epipetalous

stam·i·node

 (stā′mə-nōd′, stăm′ə-) also stam·i·no·di·um (stā′mə-nō′dē-əm, stăm′ə-)
n. pl. stam·i·nodes also stam·i·no·di·a (-nō′dē-ə)
A sterile stamen, sometimes resembling a petal, as in the flower of a canna.

[New Latin stāminōdium, from Latin stāmen, stāmin-, thread; see stamen.]

staminode

(ˈstæmɪˌnəʊd) or

staminodium

n, pl -nodes or -nodia (-ˈnəʊdɪə)
(Botany) a stamen that produces no pollen
[C19: from stamen + -ode1]
References in periodicals archive ?
The interaction between pollinator size and the bristle staminode of Penstemon digitalis (Scrophulariaceae).
However, the reproductive organs (stamen and pistil) are isolated in the flower by two morphological barriers: the staminode crown, which isolates the stigmatic arms, and the petals (cogule) involving the anthers.
Commonly the odd stamen is more or less reduced to a staminode or even lacking.
Pollination by deceit in Paphiopedilum barbigerum (Orchidaceae): a staminode exploits the innate colour preferences of hoverflies (Syrphidae).
Androecium of 4 stamens, didynamous, filaments 30-32 mm long, adnate to the corolla tube for 15-17 mm, white, glabrous, coiling after anthesis; staminode absent; anthers sagittate, 5-6 x 2-3 mm, coherent by the lateral walls, dehiscence by basal pores that develop into longitudinal slits.
Torchio (1974) described how females of a pollen-wasp butt the staminode to reach the nectaries, thereby rasping their punctate thoracic dorsa against the dentate anthers.
In Heliconia, a single stamen develops as an infertile, often callose, staminode (Kirchoff et al.
5 mm in diameter, smooth, lepidote; placentation central, ovules white, narrowly cylindrical, 10-11 per locule, filament of staminode narrowly triangular, 3.
For identification and description of the different species we used the morphological characters of growth habit, leaf-size, flower-size, petal-size, nectar scale and staminode size and shape, and also the density of setae and trichomes (scabrid and glochidiate).
For Watson and Dallwitz (1992-), a staminode is a sterile stamen, or a modified structure identifiable as such, borne in the androecial region of the flower.
The adaxial and abaxial stamen pairs show various degrees of asymmetry; either pair can be missing entirely or develop only as staminodes, or there may be a fifth stamen or staminode present in the adaxial median position.