a. Flowering branch, with enlargements of adaxial (above) and abaxial (below) leaf surfaces. b. Axis of inflorescence to show small bracts and minute bracteoles. c. Flower, posterior petal uppermost. d. Petal, abaxial view. e. Stamen, natural shape, adaxial view. f. Stamens flattened to show wings and apical appendage, abaxial view (left) and adaxial view (right). g. Gynoecium. Scale bar equivalents:
a, 4 cm (4 mm); b, 4 mm; c, 8 mm; d, 4 mm; e, f, 2.7 mm; g, 4 mm.—Based on Fernandes s.n. [EAC 12.154], MICH. Drawn by Karin Douthit. First published in Contr. Univ. Michigan Herb. 17: 40. 1990; reproduced with permission of the author.