Hiraea hippocrateoides Tr. & Planck. Liana, growing into canopy to ca 30 m; stems glabrate to glabrous in age. Petioles 7-15 mm long, canaliculate, biglandular near apex, the glands 2-3 mm broad; blades ovate to ovate-elliptic, acuminate, rounded at base, 5.5-20 cm long, 3-10 cm wide, glabrous. Panicles axillary, to 25 cm long, branched many times; flowering peduncles 5-12 mm long, bearing 2 small bracteoles and a large sessile gland at apex; bracteoles paired at nodes of inflorescence, 2-12 mm long, the larger ones near the base often toothed, 1 of each pair bearing a large gland; inflorescence branches and pedicels moderately pubescent with short T-shaped trichomes (somewhat ferruginous); pedicels pedunculate (appearing articulate just below flower), 2-4 mm long, enlarged at apex; sepals five, 1.5-3 mm long, oblique on pedicel, glabrous, curved inward against stamens, the lateral margins turned outward, the glands 9, mostly 2 per sepal, +/- irregular, greenish, to 1.5 mm long; petals 5, clawed, obovate, 4 of these yellow, rounded at apex, undulate and rounded to truncate at base, 8-10 mm long, entire, the fifth petal orange (at least on margin), minutely undulate and fimbriate on margin, 11-13 mm long, to 7 mm wide, usually somewhat erect and held above the entire petals; stamens 10, spreading, unequal, 3 directed toward the orange petal between 2 of the styles, the longest to 4 mm long; anthers nearly as broad as long; ovary 3-parted, each part with 3 ribs, densely pubescent; styles 3, somewhat spreading, to ca 4 mm long, the upper edge prolonged into a point on the outer edge opposite the stigmatic surface. Schizocarps of 3 samaras, sparsely appressed-pubescent with short T-shaped trichomes; dorsal wings small, to ca 5 mm long, subglabrous, the lateral wings fan-shaped, 1.8-2.5 cm long, 1.7-3.3 cm wide, subglabrous. Croat 14867, Foster 880, 2321.