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Byrsonima. a–f. B. hatschbachii. a. Habit. b. Adaxial view of petiole with partially connate stipules. c. Two-flowered cincinnus, the open flower with posterior petal uppermost. d. Posterior petal, abaxial view. e. Stamens, side view (left) and adaxial view (right). f. Gynoecium, with styles bending away from posterior petal. g–m, B. affinis. g. Flowering branch, with enlargement of abaxial leaf surface. h. Node with stipules. i. Two-flowered cincinnus, the open flower with posterior petal uppermost. j. Stamens, adaxial view (left) and side view (right). k. Gynoecium, with styles bending away from posterior petal. l. Fruit, cut-away view with flesh outlined, to show stone. m. Cross-section of stone of fruit, with flesh removed. Scale bar equivalents: a, 4 cm; b, 5 mm; c, 8 mm; d, 5.7 mm; e, f, 2.7 mm; g, 4 cm (8 mm); h, i, 1.3 cm; j, k, 4 mm; l, 4 cm; m, 1.3 cm.—Based on: a–f, Hatschbach 37593, MICH; g–k, Anderson 11274, MICH; l, m, Anderson 9518, MICH. Drawn by Karin Douthit. First published in Contr. Univ. Michigan Herb. 15: 94. 1982; reproduced with permission of the author.
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