Chodat, Bull. Herb. Boissier 3:545. 1895
Scandent shrub or liana; stems bearing raised,round, stipular glands at the junction of each petiole; most partssoftly short-pilose. Petioles 2-4 mm long; bladesoblong-ovate to ovate, obtuse to rounded and sometimesemarginate at apex, rounded to truncate at base, 3.5-9.5 cmlong, 2-3.5 (4) cm wide, sparsely pilose or glabrate above, denselyvelvety-pilose below. Racemes terminal, 3-3.5 cm long; pedicels 5-8mm long; flowers magenta, to 1 cm long; outer sepals 2, enlarged,3.5-5 mm long, the other 3 oval, 2.5-4 mm long; petals 3, the upper2 obovate or obovate-spatulate, 8-11 mm long, the lower 1 keeled,enclosing sexual parts, folded, with a minute fimbriate crest atapex less than 1 mm long; stamens 8, united at base into a sheath,pubescent at base; anthers much shorter than stigma; style 7.5-11mm long; stigma bilobed. Samaras 4.5-7 cm long, denselyshort-pilose at least on seminiferous part; wing obovate-oblong,4-6 cm long, 1-2 cm wide, with a small stipitate gland on marginnear seed; seed apical, 5-8 mm long. Woodworth & Vestal505.
Not seen in recent years; rare or no longerpresent on the island. The species apparently flowers more thanonce per year, mostly in May and June (rarely early July), with thefruits maturing in July and August, and again in September, withthe fruits maturing in January.
Woodworth & Vestal 505 was collected in flower inFebruary. It is intermediate in several ways between S.tenuifolia and S. diversifolia and mayrepresent only an aberrant collection of the latter species.
Panama; Trinidad. In Panama, known from tropical moist forest inthe Canal Zone, Veraguas, Panama, and Darien and from premontanewet forest in Colon (Santa Rita Ridge).