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Genus Dinosperma Family Rutaceae

Description: Shrubs or trees, with simple hairs, unarmed.

Leaves opposite or whorled, 1-foliolate or simple, pinnately 2- or 4-foliolate or 3-foliolate; leaflets with margins entire or toothed.

Inflorescences terminal or terminal and axillary in the upper axils, paniculate. Flowers bisexual, 4-merous. Sepals 4, fused at base or up to a third their length, persistent in fruit. Petals 4, imbricate or valvate, free, not persistent in fruit. Stamens 8, free, divergent, alternating ± unequally. Carpels 4, basally fused, lacking a sterile apex; styles fused, arising from about the middle of the carpels; stigma scarcely differentiated from style; ovules 2 in each carpel.

Fruit of 1–4 follicles, smooth or faintly wrinkled, with rounded or truncate apices; seeds released (probably forcibly) from dehiscing follicles, shiny, black.


Distribution and occurrence: World: 4 spp., endemic Aust., Qld, N.S.W.

Text by G.J. Harden
Taxon concept:

One species in NSW: Dinosperma erythrococcum

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