Niedenzuella acutifolia. a. Flowering branch. b. Petiole, adaxial view, showing glands above stipules. c. Base of eglandular lamina, abaxial view. d. Margin of glandular lamina, adaxial view. e. Flower bud with all sepals eglandular. f. Open flower with lateral sepals biglandular, petals removed. g. Flower, posterior petal uppermost. h. Posterior petal, abaxial view. i. Lateral petal, abaxial view. j. Three stamens laid out, abaxial view. k. Gynoecium. l. Apex of style. m. Samaras, abaxial view (left) and adaxial view (right). n. Embryos. Scale bar equivalents: a, 4 cm; b, 4 mm; c, 8 mm; d, 4 mm; e, 5.7 mm; f, 4 mm; g, 6.7 mm; h, i, 4 mm; j, k, 2 mm; l, 0.8 mm; m, 1.3 cm; n, 4 mm. Based on: a–d, f–l, Anderson 11187, MICH; e, Landrum 2075, MICH; m, n, De Granville 304, MICH. Drawn by Karin Douthit. © University of Michigan Herbarium.
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