Tetrapterys heterophylla. a. Flowering branch from which vegetative leaves have fallen. b. Persistent vegetative leaf subtending inflorescence. c. Node with distinct interpetiolar stipules. d. Inflorescence leaf, abaxial view. e. Margin of inflorescence leaf to show marginal glands. f. Flower bud.  g. Flower, posterior petal uppermost. h. Androecium laid flat, abaxial view, the shortest stamen opposite posterior petal. i. Gynoecium, anterior style to right. j. Samara, abaxial view. Scale bar equivalents: a, b, 4 cm; c, 4 mm; d, 1.3 cm; e, 4 mm; f, g, 8 mm; h, i, 2.7 mm; j, 1.3 cm. Based on: a–i, Alexander 325, MICH; j, Sando
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Keys: Central America (flowers, fruits)
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