a. Flowering branch. b. Enlargement of adaxial leaf surface to show reticulum. c. Flower bud borne on sessile pedicel subtended by bracteoles and bract. d. Flower, lateral view, posterior petal uppermost. e. Posterior petal, flattened, adaxial view. f. Anthers, adaxial view (left) and abaxial view (right). g. Gynoecium, anterior style in center. h. Apex of anterior style, adaxial view. i. Fruit with only two mericarps developed. Scale bar equivalents:
a, 4 cm; b, c, 8 mm; d, e, 1 cm; f, g, 4 mm; h, 2 mm; i, 2 cm. Based on: a–h, Oldeman B.2666, MICH; i, drawing in protologue and photographs of isotypes (Poiteau s.n.) in K (WRA 81-15-18, MICH) and P (WRA 91-1-21, MICH). Drawn by Karin Douthit. First published in Contr. Univ. Michigan Herb. 23: 102. 2001; reproduced with permission of the authors.