Hiraea singularis. a. Habit. b. Detail of stem showing pubescence. c. Large leaf, adaxial view. d. Detail of abaxial leaf surface, showing pubescence and marginal gland. e. Detail of leaf base, abaxial view, showing two basal glands, and portion of petiole with one stipule. f. Inflorescence. g. Sepal, abaxial view, showing stalked glands. h. Detail of pedicel showing pubescence. i. Detail of inflorescence attachment, showing abbreviated stalk supporting the single umbel. j. Posterior petal, adaxial view. k. Anterior lateral petal, abaxial view. l. Androecium, the anthers detached, filament fourth from left opposite posterior petal. m. Anther. n. Gynoecium, anterior style to left. Scale bar equivalents: a, 4 cm; b, 4 mm; c, 4 cm; d, 2 mm; e, 4 mm; f, 1.3 cm; g–k, 4 mm; l–n, 2.7 mm. Based on: a, b, f–n, Martínez 35, MICH; c–e, Wingfield 7826, MICH. Drawn by Karin Douthit. First published in New York Bot. Gard. 108: 216. 2013; reproduced with permission of the author.