Flora of New Zealand Series

Fls small, solitary, axillary, 5-merous; calyx cut to base into subequal sepals; corolla deeply lobed, broadly campanulate, lobes induplicate. Staminal filaments filiform, anthers included. Ovary of 2 distinct 1-2-ovuled carpels; styles basal. Capsule membr., us. 1-seeded, opening irregularly. Small creeping perennial herbs, rooting at nodes, with entire lvs. A widespread genus of warm regions, with some 10 spp.