GENERIC CHARACTER.
Calyx, nullus; nisi bracteas sub germine pro calyce assumas.
Corolla monopetala, marcescens; tubus filiformis, elongatus; limbus quadripartitus, planus, tubo brevior; laciniis ovatis.
Nectarium, glandulæ quatuor, seu octo, ovatæ, fauci circumpositæ, penicillo proprio cinctæ.
Stamina. Filamenta quatuor, brevissima, intra tubum ocultata. Antheræ lineares.
Pistillum. Germen ovatum. Stylus filiformis, longitudine tubi. Stigma capitatum, hispidum.
Pericarpium coriaceum, ovatum, uniloculare.
Semen unicum, acutiusculum.
Empalement, none; unless you take the floral leaves at the base of the seed-bud for the cup.
Blossom one petal, withering; tube thread-shaped, lengthened; border of four divisions, flat, shorter than the tube; segments egg-shaped.