a. Flowering branch. b. Abaxial surface of lamina enlarged to show tiny glands. c. Adaxial view of petiole to show small glands and basal stipules. d. Flower bud. e. Flower, posterior petal uppermost. f. Abaxial views of lateral petal (left) and posterior petal (right). g. Abaxial view of two stamens. h. Gynoecium. i. Samaras, abaxial view (left) and adaxial view (right). Scale bar equivalents:
a, 4 cm; b, 8 mm; c, 5 mm; d–f, 4 mm; g, h, 2 mm; i, 2.7 cm. Based on: a–d, Anderson 10176, MICH; e–i, Anderson 11786, MICH. Drawn by Karin Douthit. First published in Novon 16: 177. 2006; reproduced with permission of the author.