Cavendishia gentryi Luteyn, Brittonia 28: 400.  1976.  Type.  Panama.  Darién:  Cerro Tacarcuna, Gentry & Mori 13971 (holotype: MO;  photo of holotype, NY;  isotypes: DUKE, NY).

        Epiphytic shrub, mature branches terete, smooth, glabrate, brown;  immature branches and twigs of the new growth terete, smooth, reddish-brown, densely pilose with white hairs to 4 mm long.  Leaves elliptic to ovate elliptic, 8-13 x 3.5-5.5 cm, basally rounded, apically abruptly acuminate, brownish-green when dry, densely pilose beneath with hairs to 2 mm long, scattered pilose above;  3(-5)-plinerved, the midrib, the lateral nerves and the primary veins impressed and conspicuous above, elevated beneath, the veinlets slightly elevated above, obscure beneath;  petioles terete, rugose, 5 mm long and 2 mm diam., densely pilose with tan hairs to 3 mm long.  Inflorescence short-racemose, 6-flowered;  rachis terete, striate, densely pilose, ca. 2.5 cm long;  floral bracts lanceolate, long acuminate, 16-23 x 4-6 mm, densely pilose marginally, scattered pilose on the lamina, trichomes to 2 mm long;  pedicels swollen distally, striate, densely pilose, 8-12 mm long;  bracteoles not seen.  Flowers with the calyx densely pilose, 13-13.5 mm long, pink;  hypanthium spherical, 3.5-4.5 mm long and broad, not expanded;  limb short-cylindric or somewhat spreading, 9-9.5 mm long including  the lobes;  lobes linear-lanceolate, acute, ca. 8 long and 2 mm broad at the base, erect after anthesis, marginally with 3-4 gland-tipped fimbriae on each side;  sinuses acute;  corolla (past anthesis) cylindric, ca. 20 mm long, scattered pilose with the hairs denser at the lobe tips;  stamens ca. 16 mm long;  filaments alternately ca. 1 mm and 3 mm long;  anthers including tubules alternately ca. 15 mm and 13 mm long;  thecae 3-4 mm long;  style ca. 21 mm long.  Berry not seen.

        Distribution (Map).  Endemic to the Panama/Colombia border area of Cerro Tacarcuna and only known from two collections.  Rare and endangered.