Tetrapterys microphylla. a. Flowering branch. b. Base of lamina, abaxial view, to show marginal glands. c. Node, with epipetiolar gland and minute interpetiolar stipule. d. Detached large leaf, abaxial view. e. Detached small leaf, adaxial view. f. Flower bud, with portion of inflorescence axis. g. Flower, posterior petal uppermost. h. Petals, posterior above, lateral below. i. Androecium laid out, abaxial view, the stamen fifth from left opposite posterior petal. j. Anthers, adaxial view (left) and abaxial view (right). k. Gynoecium. l. Apex of style. m. Samaras, adaxial view. n. Samara, abaxial view. Scale bar equivalents: a, 4 cm; b, 8 mm; c, 4 mm; d, e, 4 cm; f, g, 8 mm; h, 6.7 mm; i, 4 mm; j, 2 mm; k, 2.7 mm; l, 1.3 mm; m, n, 1.3 cm. Based on: a, b, f, Irwin et al. 28677, MICH; c, d, Anderson 11541, MICH; e, Irwin et al. 9389, MICH; g–l, Maguire et al. 49026, MICH; m, n, Irwin et al. 22473, MICH. Drawn by Karin Douthit. © University of Michigan Herbarium.
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