a. Flowering branch, with enlargement of abaxial surface of lamina to show glands. b. Node to show stipules. c. Two-flowered cincinnus. d. Bracteole glands. e. Flower, side view, posterior petal uppermost. f. Posterior petal, adaxial view. g. Anthers, abaxial view (left) and adaxial view (right). h. Gynoecium. i. Distal portion of style. j. Fruit. k. Single mericarp, adaxial view. l. Mericarp in longitudinal section, with seed in position. m. Embryos, side view (left) and abaxial view (right). Scale bar equivalents:
a, 3 cm (6 mm); b, c, 6 mm; d, 3 mm; e, 4 mm; f, 3 mm; g, 1 mm; h, 1.4 mm; i, 0.7 mm; j, 5 mm; k–m, 3.3 mm. Based on: a, b, Grayum 2231A, DUKE; c–m, Hammel 9397, MICH. Drawn by Karin Douthit. First published in Brittonia 35: 39. 1983; reproduced with permission of the author.