all drawings
H. mortoniana. a. Inflorescence. b. Posterior petal. c. Posterior-lateral petal. d. Anterior-lateral petal. Scale bar equivalents: a, 4 cm; b–d, 4 mm. Based on Klug 3332, A. Drawn by Karin Douthit. First published in Edinburgh J. Bot. 70: 427. 2013; reproduced with permission of the author.