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Heteropterys cotinifolia. a. Fruiting branch. b. Epipetiolar stipule. c. Gland on petiole. d. Gland on abaxial leaf surface. e. Flower bud borne on pedicel and peduncle. f. Flower bud enlarged to show keeled petals. g. Flower, lateral view, posterior petal uppermost. h. Petals, abaxial views, lateral petal (right) and posterior petal (left). i. Androecium laid out, abaxial view, stamen second from left opposite posterior petal. j. Gynoecium, anterior style in center. k. Distal portion of style, lateral view. l. Samara. Scale bar equivalents: a, 4 cm; b, 4 mm; c–e, 8 mm; f, g, 5.7 mm; h, 5 mm; i, 4 mm; j, 2.7 mm; k, 1 mm; l, 2 cm. Based on: a–d, l, Anderson & Laskowski 4330, MICH; e–k, Flores-Franco et al. 2692, MICH. Drawn by Karin Douthit. © University of Michigan Herbarium.
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