Hullettia
Description
Shrubs to small trees, monoecious.
Leaves spirally arranged;
stipules free, lateral, subulate, subpersistent.
Inflorescences unisexual, solitary or in pairs in the leaf axils, discoid- to turbinate-capitate, pedunculate, with a row of bracts at the margin of the receptacle (interfloral bracts present in staminate inflorescences, absent or rudimentary in pistillate ones?).
stamens 2, filaments partly connate.
ovaries free, stigma 1, capitate.
seed without endosperm, embryo straight, longitudinally aligned, cotyledons equal, radicle basal, short.
Distribution
Asia-Tropical: Sumatera (Sumatera present), Myanmar present
The genus comprises two closely related species and ranges from Myanmar to Sumatra.
Morphology
The discoid and involucrate inflorescences are reminiscent of the type found in some members of the Castilleae and species of Dorstenia, in which genus one of the species has been described. Small ovate to linear structures found among staminate flowers of H. dumosa probably represent interfloral bracts. Minute elevations with slightly different indumentum among the flowers of pistillate inflorescences may also represent such bracts, but quite rudimentary.