Isotoma (R.Br.) Lindl.
Fls 5-merous, in racemes or solitary; receptacle adnate to ovary; corolla-tube cylindric, entire or shortly slit; lobes nearly equal. Stamens inserted at mid-tube; filaments connate in upper part, anthers connate, lower pair awn-tipped; stigma 2-lobed. Capsule 2-celled, loculicidally dehiscent. Seeds ∞, minute. Some 10 spp. of Australia, Tasmania, West Indies, Society Is. The N.Z. sp. also in Australia, Tasmania.