Tetrapterys tinifolia. a. Flowering branch. b. Detached large leaf from lower stem. c. Node with connate interpetiolar stipules. d. Base of leaf, abaxial view. e. Flower bud borne in umbel of four. f. Flower, posterior petal uppermost. g. Stamens, abaxial view. h. Gynoecium, anterior style in center. i. Apex of lateral style. j. Samara, abaxial view. k. Samara, adaxial view. Scale bar equivalents: a, b, 4 cm; c, 8 mm; d, e, 1.3 cm; f, 8 mm; g, h, 2.7 mm; i, 2 mm; j, k, 2 cm. Based on: a, c–i, Wilbur 36960, MICH; b, Hammel 8842, DUKE; j, Hammel 9213, DUKE; k, Smith 524, DUKE. Drawn by Karin Douthit. © University of Michigan Herbarium.
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Keys: Central America (flowers, fruits)
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