Gay, Mém. Mus. Hist. Nat. Paris 7:450 (1821).
Derivation: After the Thomases a Swiss family several of whose members were plant collectors.
Synonymy: Not Applicable
Common name: None
Perennial shrubs with stellate hairs on the branches; leaves with persistent leaf-like stipules, entire to serrate, with pinnate venation, shortly petiolate.
Flowers bisexual, in leaf-opposed racemes; bracts 0 or caducous, sometimes apparently reduced to a pair of stipules; epicalyx of 3 free green elliptic segments, shorter than the calyx; calyx petaloid, broadly 5-lobed to below the middle or almost to the base, the lobes 1-nerved and reticulately veined; petals minute or 0; stamens 5, short, opposite the petals; anthers dehiscing by short terminal slits; staminodes 0; ovary sessile, usually 3-celled, with 2 or more anatropous ovules in each cell; style simple.
Fruit a loculicidal capsule, enclosed by the calyx; seeds albuminous, carunculate, cotyledons broad and flat, radicle inferior.
About 30 species, all Australian.
Not yet available