Prestonia trifida (Poepp.) R. E. Woodson

Prestonia obovata Standley, Jour. Wash. Acad. 15: 459. 1925
Fruticose liana; leaves coriaceous to subcoriaceous, obovate to obovate-oblong, 9-16 cm. long, 4-8 cm. broad, obtuse or rounded, or occasionally abruptly and very shortly acuminate, obtuse and somewhat cuneate at the base, glabrous, somewhat lustrous above, the petioles 7-12 mm. long, glabrous to very sparsely and minutely pilosulous ; inflorescence corymbose, dichotomous, bearing 10-30 purplish-yellow flowers, the peduncle much shorter than the subtending leaves, glabrous ; pedicels 1 1-15 mm. long, minutely and sparsely pilosulous to glabrate; bracts ovate-lanceolate, 1.5-2 mm. long; calyx-lobes oblong-elliptic, acuminate, 10-12 mm. long, coriaceous, purplish, minutely papillate to glabrous externally; corolla salverform, minutely papillate externally, the tube 10-13 mm. long, about 3 mm. in diameter at the base, the epistaminal appendages wholly included, the lobes obliquely obovate, 7-10 mm. long; anthers glabrous, slightly exserted; nectaries concrescent, rather thick and fleshy, entire or slightly undulate, somewhat longer than the ovary; follicles unknown.
Type locality: Between Gamboa and Cruces, Canal Zone, Panama. Distribution: Panama.