Thibaudia cyathifera Bentham, Pl. hartweg. 222.  1846.  Psammisia cyathifera (Bentham) Klotzsch, Linnaea 24: 43.  1851.  Type.  Colombia.  Cundinamarca:  Tena, Hartweg 1216* (holotype, K(?);  isotype, BREM).

    Shrub; stems subterete, glabrous, brownish.  Leaves oblong to lanceolate-oblong, sometimes falcate, 12-35 x 3.5-7 cm, basally cuneate, apically acuminate, marginally subentire or shallowly crenate or subserrate towards apex, glabrous;  5-7-plinerved (or somewhat pinnate-nerved), the lateral nerves oriented above the base, ascending, with the midnerve slightly impressed above and raised beneath, the reticulate veinlets plane or slightly raised on both surfaces;  petiole rugose, glabrous, narrowly winged above, 5-15 mm long.  Inflorescence axillary, racemose, essentially glabrous, 10-20-flowered;  rachis subterete, stout, 3-9 cm long;  pedicels striate, 18-40 mm long;  floral bract oblong, coriaceous, ca. 4 mm long;  bracteoles basal, minute.  Flowers with calyx 7-9 mm long;  hypanthium short-cylindric or campanulate, ca. 4 mm long, 5 mm diam.;  limb coriaceous, 3-5 mm long; lobes ovate, apiculate, ca. 1 mm long;  corolla subcylindric, often slightly falcate, 18-28 mm long, 6 mm in diam., the lobes oblong, subacute, ca. 1.5 mm long;  stamens 12-16 mm long;  filaments distinct, 4-6 mm long, distally pilose at margins with hairs up to 0.6 mm long;  connectives alternately 2-spurred, the spurs subacute;  anthers ca. 10 mm long;  thecae 8-9 mm long;  tubules subcylindric, 3-5 mm long;  style exserted;  stigma truncate.  Berry subspherical, up to 12 mm diam.

    Distribution.  Endemic to Colombia.