N.E. Br., Gdnrs' Chron. 78:433 (1925).
Derivation: Greek dis, twice; phyma, a tubercle; alluding to the tuberculate placentas.
Synonymy: Not Applicable
Common name: None
Perennial shrubs rooting at the nodes, with opposite fleshy trigonous to subterete scarcely papillose exstipulate leaves which are connate at the base.
Flowers solitary, terminal; perianth lobes 5 of which 2 are large and leaf-like and 3 are small with membranous margins, free; stamens many; staminodes numerous, petaloid, free, showy, purple or pink; ovary inferior, 5-celled, with numerous parietal ovules; styles 5.
Capsule opening when wet by 5 keeled valves which have membranous wings; placentas thickened at the apex into a bifid tubercle which more or less closes the aperture in the cell roof; seeds pale or brown, papillose to almost smooth.
3 species, 2 in South Africa and Australia, 2 in New Zealand. (R. J. Chinnock (1971) New Zealand J. Bot. 9:331-344).
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