Didymodoxa E. Mey. ex Wedd.
  • Ann. Sci. Nat., Bot., sér. 4, 7: 397. 1857.


Cite taxon page as 'WFO (2021): Didymodoxa E. Mey. ex Wedd. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000011644. Accessed on: 22 Oct 2021'

Morphology

Leaves alternate, petiolate, serrate, crenate or entire; cystoliths punctiform; stipules free, lateral

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    Annual herbs, monoecious or (by abortion) dioecious

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    Achene slightly winged along one side, other side rounded, frequently 2 ovaries or achenes join along the rounded side to form a double fruit, which is much larger than two single fruits, both seeds developing in this case

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    Fig. 17/A–G.

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    Inflorescences usually bisexual, axillary, sessile, bracted, bracts free, not prominent, usually shorter than the flowers

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    Flowers: ♂ with a boat-shaped, sometimes almost bract-like perianth with erect tip and slightly fused cylindrical base, with 1 stamen, without rudimentary ovary; ♀ without perianth, ovary erect, with a subcapitate or shortly linear style

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    Achene with a narrow, slightly unilateral wing.

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    Cystoliths dot-like.

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    Leaves alternate, petiolate, serrate, dentate or entire; stipules lateral, free.

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    Slender annual herbs, monoecious or dioecious by abortion.

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    Male flowers few together, sessile; perianth boat-shaped; stamen single, inflexed; rudimentary ovary absent.

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    Female flowers sessile; perianth and staminodes absent; ovary erect, stigma sessile, filiform.

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    Inflorescences of dense sessile clusters, axillary or on reduced branches, bisexual or unisexual by abortion, always without a common involucre, but often with ciliate or bristle-bearing bracts.

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