Tetrapterys vacciniifolia. a. Flowering branch. b. Base of lamina, abaxial view, showing marginal glands. c. Flower bud. d. Flower, lateral view, posterior petal uppermost. e. Three stamens, abaxial view. f. Gynoecium. g. Stigmas, lateral view (left) and adaxial view (right). h. Samara, abaxial view. i. Samara, adaxial view. Scale bar equivalents: a, 4 cm; b–d, 4 mm; e, f, 2 mm; g, 0.8 mm; h, i, 6.7 mm. Based on: a–g, Bunting 10469, MICH; h, i, Wingfield 13017, MICH. Drawn by Karin Douthit. © University of Michigan Herbarium.
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