Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Idioms.
Related to Doubleness: follow suit, catch up, in the first place, the likes of



in flowers, the expansion of the corolla or corollalike perianth because of an increase in the number of petals. Doubleness is often the result of the transformation into petals of stamens (roses, peonies, ranunculuses, pomegranate) or pistils (Ranunculaceae, Rosaceae, some violets, clover, some petunias). More rarely, doubleness results from the splitting of petals (fuchsia) or stamens (some Caryophyllaceae) or the increase in the number of circles in a simple perianth (some tulips and lilies). Double inflorescences are encountered among the Compositae; these result from the conversion of the interior bisexual flowers into ligulate, usually infertile flowers (dahlia, aster, chrysanthemum) or peripheral ligulate flowers into tubular flowers.

Horticulturalists can induce doubleness by hybridization or by changing the conditions of cultivation (for example, abundant feeding promotes doubleness). Doubleness is often accompanied by profound changes in the organs of the flower. For example, in Primula anthers develop on the ovarian wall and on the stigma; in fuchsias and roses ovules arise on stamens. Incomplete doubleness is most often encountered. Complete doubleness, with all the stamens and pistils converted into petals (such flowers do not yield seeds), rarely occurs. Although viable pollen is formed in double flowers whose extra petals have been formed from stamens, it is located in deeply hidden tissues and is destroyed the moment the flower opens. If gathered in time, the pollen is suitable for artificial pollination. Vegetative reproduction is often used in cultivating double flowers.


Fedorov, Al. A. Teratologiia i formoobrazovanie u rastenii. Moscow-Leningrad, 1958.
Zhukovskii, P. M. Botanika, 4th ed. Moscow, 1964.


References in periodicals archive ?
This doubleness fascinated John Keats; he called it "negative capability": "that is when a man is capable of being in uncertainties, Mysteries, doubts, without any irritable reaching after fact & reason.
These two elements, doubleness and resistance, produce a carnivalization of discourse in the Bakhtinian sense, with its emphasis on transgressions.
That doubleness and his availability - the lust for experience that draws him to Falcon - are both critical.
Most importantly Caesar asserts a self-undermining doubleness in many poems long thought to be exemplary anti-war pieces.
This particular doubleness of linguistic stance, along with his almost intimidating verbal gifts, makes Nathaniel Mackey one of the most compelling - as well as one of the most innovative - poets of his generation, and makes School of Udhra required reading for anyone interested in contemporary American poetry.
Ultimately, the doubleness of the experience--viewing the birds with the naked eye and through the lenses--was central to the work's meaning.
This is a doubleness that Helga will struggle with throughout the text.
Therefore, in this article we aim to re-capture historical understandings of 'praxis' as a resource for understanding pedagogical work through re-igniting a sense of the doubleness of education as both an ethical and a practical ideal that addresses the needs and purposes of students and their communities.
Yet this doubleness often manifests in this same pairing of the private/public, personal/ political reversal that I have formulated.
Irony: if one of its features is doubleness, another implicit but less often remarked upon feature is its simultaneity or synchronization.
We too, along with Nathan, go about the afternoon experiencing a vertiginous doubleness complicated by the very simple fact that whereas the writer knows what is real, that is to say, what belongs to the unwritten world, we have only the written world to cope with as there exists nothing else for us when we read.
This brilliant essay collection provides sources for earlier works by Aleksandar Hemon, explores identity formation and diasporic doubleness, and investigates Hemon's writing process.