Flora of Barro Colorado Island

Strychnos darienensis

Seem., Bot. Voy. Herald 166.1854

Liana; stems divaricately branched, minutely puberulent to glabrate in age; tendrils stout, curled. Petioles and midribs sparsely pubescent; petioles mostly 2-7 mm long; blades usually narrowly elliptic or lanceolate, acuminate, rounded to acute at base, 6-17 cm long, 3-6 cm wide, ± thick, with brown trichomes on lower surface in axils of central vein pair, pliveined, the veins 3 or 5. Thyrses short, axillary, to 3 cm long; flowers 4 (5)-parted; inflo­rescence branches and calyx lobes to 2 mm long; corolla yellowish, bearded inside tube, 2-3 mm long; filaments attached to corolla tube; style long-exserted, to 7 mm long, glabrous. Fruits globose or ovoid, ca 4 cm diam, yellow at maturity; seeds few, irregularly oblong, to 2 cm long and 1.5 cm wide. Croat 15079, Foster 1465.

Rare, in the forest. On BCI some flowers have been seen in December.

Nicaragua and Costa Rica south to the Guianas, Brazil, Ecuador, and Peru. In Panama, known from tropical moist forest in the Canal Zone, Veraguas, and Darien and from tropical dry forest in Panama (Taboga Island).

Photos from STRI Digital Archive

  • Strychnos darienensis seed-wet
  • Strychnos darienensis
  • Strychnos darienensis