Stylidieae
A small natural order of herbs or rarely under-shrubs, chiefly Australian, a few species being found in tropical Asia, or in New Zealand and Antarctic America. Flowers hermaphrodite or very rarely unisexual, in terminal racemes or thyrsoid or corymbose panicles, rarely reduced to spikes or to single flowers, the primary inflorescence usually centripetal, the secondary often, or sometimes the whole, centrifugal; calyx tube adnate to the ovary, the limb of five divisions, all free or more or less united in two lips, the upper of three; corolla usually irregular, deeply divided into five lobes, of which one (the lowest), called the labellum, is much smaller than, or different from, the others, or rarely the corolla, as well as the calyx, regularly five or six-lobed; stamens two, the filaments connate with the style in a column free from the corolla. Capsule two-valved. Leaves radical or scattered, or collected in whorl-like tufts, entire, often narrow or small. The order embraces nearly 100 species; of these Stylidium absorbs eighty-four, and the remainder are classed under Forstera, Levenhookia, and Phyllachne.