Flora of Barro Colorado Island

Oncidium stipitatum

Lindl. in Benth., Bot. Voy. Sul­phur 172. 1846

Caespitose epiphyte; pseudobulbs lacking or 5-10 mm long, usually ensheathed in papery bracts, bearing a single leaf. Leaves terete, longitudinally grooved, 24-70 cm long, to 1 cm wide, becoming pendent and usually reddish-brown in age. Panicles solitary, many-flowered, from base of pseudobulb, ± equaling leaves; flowers variable in size, to 2.5 cm long; sepals and lateral petals subequal, clawed at base, yellow heavily marked with reddish brown; lip trilobate, fiddle-shaped, clawed, yel­low, to 2 cm long, nearly as broad as long, the lateral lobes obovate-spatulate, with a short claw, separated from the broad bilobed middle lobe by a narrow isthmus; base of lip with a fleshy, toothed callus; column with lateral, fanlike wing. Fruits ± ellipsoid, tapered toward apex, to 2.5 cm long, with flat ridges. Croat 8396.

Occasional, along the margin of the lake, usually not in full sun. Flowers from January to April, especially in February and March. The fruits develop quickly and are dispersed usually by May (or as late as July).

Pollinated by a bee of the genus Centris (Dodson, 1965a).

Known only from Panama, principally in tropical moist forest in central Canal Zone, Colón, and Panama; known also from premontane wet forest in Panama (Cerro Campana).

See Fig. 171.

Photos from STRI Digital Archive

  • Oncidium stipitatum on Cocos nucifera
  • Oncidium stipitatum on Cocos nucifera
  • Oncidium stipitatum Flower found on Cocos nucifera
  • Oncidium stipitatum Flower found on Cocos nucifera
  • Oncidium stipitatum Flower found on Cocos nucifera
  • Oncidium stipitatum Flower found on Cocos nucifera
  • Oncidium stipitatum Flower found on Cocos nucifera
  • Oncidium stipitatum Flower found on Cocos nucifera
  • Oncidium stipitatum
  • Oncidium stipitatum