a. Flowering and fruiting branches. b. Node to show intrapetiolar stipules. c. Flower, posterior petal at upper right. d. Stamens, adaxial view (left) and side view (right). e. Gynoecium. Scale bar equivalents:
a, 4 cm; b, c, 6.7 mm; d, 2.7 mm; e, 2 mm; f, 4 mm.—Based on Maguire et al. 36648, MICH. Drawn by Karin Douthit. First published in Mem. New York Bot. Gard. 32: 130. 1981; reproduced with permission of the author.