Tetrapterys fimbripetala, T. pusilla, and T. oleifolia. a–c, T. fimbripetala. a. Fruiting branch. b. Leaf, abaxial view. c. Fruit with one samara developed. d–f, T. pusilla. d. Flower, posterior petal uppermost. e. Stamen, abaxial view. f. Gynoecium. g–i, T. oleifolia. g. Flowering branch. h. Enlargement of abaxial surface of lamina. i. Immature fruit. Scale bar equivalents: a, 4 cm; b, 2.7 cm; c, 8 mm; d, 9 mm; e, f, 2 mm; g, 4 cm; h, 1 cm; i, 5 mm. Based on: a–c, Maguire et al. 30054, NY; d–f, Tillett et al. 45201A, MICH; g, h, Steyermark & Nilsson 8, VEN; i, Steyermark et al. 105495, NY. Drawn by Karin Douthit. First published by W. R. Anderson in Mem. New York Bot. Gard. 32: 260. 1981.
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