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Heteropterys. a–g, H. fruticosa. a. Leafy and flowering branches. b. Rootstock. c. Branch of inflorescence. d. Flower bud. e. Flower, posterior petal uppermost. f. Anther, abaxial view. g. Distal portion of style, lateral view. h–o, H. prancei. h. Leaf and partial inflorescence. i. Petiole showing sunken glands. j. Flower bud. k. Flower, posterior petal uppermost. l. Posterior petal. m. Anther, abaxial view. n. Distal portion of style, lateral view. o. Samara. Scale bar equivalents: a, b, h, 4 cm; c, i, 1.3 cm; d, j, l, 4 mm; e, k, 8 mm; f, m, 2 mm; g, n, 1 mm; o, 2.7 cm.—Based on: a, c, d, Anderson 10923, NY; b, e–g, Pires et al. 6083, NY; h–n, Prance et al. 6788, MICH; o, Zarucchi et al. 2759, MICH. Drawn by Karin Douthit. First published in Contr. Univ. Michigan Herb. 20: 26. 1995; reproduced with permission of the author.
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