Stamina. Filamenta quatuor, horum duo priora sub fauce margini corollæ inserta, extantia; duo seriora, interiora, inferiora, reflexa ad latera. Antheræ lunares, compressæ, extrorsum truncatæ.
Pistillum. Germen minimum. Stylus filiformis, per fissuram corollas reflexus. Stigma simplex.
Pericarpium. Capsula oblonga, unilocularis, bivalvis.
Semina duo, oblonga, hinc convexa, trisulca, inde plana.
Empalement. Cup one-leafed, tubular, membranaceous, notched at the end, splitting lengthways from beneath.
Blossom one-petalled, one-lipped; tube cylindric, longer than the cup, splitting from the lower side half way; border one-lipped, ascending, flattish, four-cleft, the clefts nearly equal.
Chives. Threads four, of which the upper pair is inserted into the edge of the blossom under the throat, standing out; the lower anterior pair is bent back to the sides. Tips crescent-shaped, flattish, appearing cut off on the outside.
Pointal. Seed-bud very small. Shaft thread-shaped, bent back through the fissure of the blossom. Summit simple.
Seed-vessel. Capsule oblong, one-celled, two-valved.
Seeds two, oblong, convex on one side, three-furrowed and flat on the other.