Geonoma interrupta Mart.
Family: Arecaceae
Geonoma interrupta image
Enrique Moreno & David Roubik  
G. oxycarpa Mart.; G. binervia Oerst. Small, monoecious tree, to 6 m tall; trunk to 6.5 cm diam; leaf scars prominent, to 8 cm apart. Leaves glabrous, irregularly pinnate, ca 2.5 m long; petioles 40-65 cm long, vaginate at base, flattened above with sharp edges; blades often more than 2 m long; leaflets in 20-30 pairs, abruptly long-acuminate, held in a single plane, 45-60 cm long, 1-9 cm wide (except terminal), spaced 1-10 cm apart, with 1-7 ribs prominent on upper and lower surfaces; rachis flat below, becoming triangulate by middle of blade; juvenile leaves entire. Spadix somewhat maroon, compound, branched many times, 60-75 cm long, often about as broad as long, lightly pubescent; flower pits spirally arranged in 5 series ca 3-6 mm apart; staminate flowers whitish, exserted, ca 4 mm long; pistillate flowers shorter, embedded. Fruits globular-ellipsoid, 4-6 mm long; pericarp slightly fleshy, becoming reddish and finally purple to black at maturity; seed 1. Croat 7432, 9303. Occasional and usually widely dispersed in the forest. Flowering data is inconclusive. Flowers and fruits may be seen in most months of the year, but the flowers appear principally in the dry and early rainy seasons, with the fruits maturing during the rainy season. Possibly confused with Synechanthus warscewiczianus, a plant of similar habit with irregular leaves but with an inflorescence of many slender undivided branches. Some plants possibly are entirely staminate, since the inflorescences wither after flowering. I am using here the broader interpretation of this species used in the Flora of Surinam (Wessels-Boer, 1965) and not the narrower interpretation used in the monograph of geonomoid palms (WesselsBoer,1968).