a. Flowering branch. b. Bases of leaves and node. c. Hair from abaxial surface of lamina. d. Flower, posterior petal at upper right. e. Androecium and gynoecium, lateral view, in flower with petals removed and all sepals removed except eglandular anterior sepal. Scale bar equivalents:
a, 4 cm; b, 1.3 cm; c, 0.2 mm; d, 6.7 mm; e, 3 mm. Based on Maguire et al. 36155, NY. Drawn by Annette Seidenschnur Mahler. First published in Mem. New York Bot. Gard. 32: 243. 1981, as H. bifurcata
; reproduced with permission of the author.