Calyx. Perianthium imbricatum; foliolis concavis, persistentibus, exterioribus gradatim minoribus.
Corolla. Petala 4, 5, 6, subrotunda concava, crassa, cochleata.
Stamina. Filamenta plura, simplicia, corolla breviora. Antheræ simplices, apicis lateri adnatæ.
Pistillum. Germen ovato-oblongum. Stylus nullus. Stigma stellatum, planum, obtusum, persistens.
Pericarpium. Capsula ovata, sulcis exerata, locularis, valvis tum radiatim dehiscentibus.
Semina numerosa, ovata, pulpa obtecta, affixa receptaculo columnari, anguloso.
Obs. Numerus in parte fructus differt a quatuor ad duodecim proportione observata in stigmate, valvulis, loculis, &c. Flores alii a parte masculina, alii a feminina steriles sunt.
Empalement. Cup tiled; leaflets concave, remaining, the outer ones gradually smaller.
Blossom. Petals 4, 5, 6, roundish, concave, thick and shell-like.
Chives. Threads many, simple, shorter than the blossom. Tips simple, growing to the side of the point.