GENERIC CHARACTER.
Calyx. Perianthium monophyllum, campanulatum, quinquedentatum, obtusum, minimum, persitens.
Corolla monopetala, infundibuliformis; tubus longissimus, subincurvus; limbus planus, quinquefidus, obtusus.
Stamina. Filamenta quatuor, brevissima. Antheræ oblongæ, erectæ, filamentis dorso affixæ.
Pistillum. Germen subrotundum, parvum. Stylus filiformis, longitudine tubi. Stigma crassiusculum.
Pericarpium. Capsula extus baccata, globosa, unilocularis, bivalvis.
Semina plurima, compressa, hinc convexa, inde angulata, punctato-scabra.
Receptaculum fundo capsulæ adnatum, paleaceum; paleis coadunatis, apice subulatis, semina distinguentibus.
Empalement. Cup one leaf, bell-shaped, five-toothed, blunt, very small, remaining.
Blossom. One petal, funnel-shaped; tube very long, rather curved; border flat, five-cleft, obtuse.