Centema Hook. f.
  • Gen. Pl. 3: 31. 1880. (7 Feb 1880)


Cite taxon page as 'WFO (2020): Centema Hook. f. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000007176. Accessed on: 31 Mar 2020'

Morphology

Stamens 5; filaments filiform, flattened, fused only at the extreme base without intermediate pseudostaminodes; anthers narrow, bilocular.

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    Perianth segments 5, obviously narrower from the outer to the inner.

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    The sterile flowers (which develop so rapidly as to be difficult to detect in young flowers) consist of a single finally hard and gibbous-based spine, the entire partial inflorescence thus falling as a 3-spined burr complete with bracteoles; bracts persistent on the inflorescence axis.

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    Partial inflorescences normally consisting of two (occasionally one in the upper part of the thyrse) fertile flowers; one of these is subtended dorsally by a single sterile flower (which is thus contained in a partial inflorescence bracteole), the other by a sterile flower on each side, each of which is contained in a bracteole of its own.

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    Flowers in pedunculate (rarely some sessile) spike-like bracteate thyrses, each bract subtending a bibracteolate partial inflorescence.

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    Leaves entire, opposite on mostly branched stems.

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    Erect perennial herbs or low shrubs.

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    Utricle scarcely compressed, delicate save for a small, firm area about the base of the style, irregularly ruptured by the developing seed; seed with abundant endosperm.

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    Ovary uniovulate, somewhat compressed, delicate; style slender, with two short or elongate stigmatal branches.

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    • Source: [
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     Information From

    Amaranthaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Plants Of the World Online Portal - FZ
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • B
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).