Tetrapterys seleriana. a. Flowering branch. b. Marginal leaf gland, abaxial view. c. Minute stipule beside base of petiole. d. Flower bud on pedicel subtended by peduncle with subapical bracteoles, the peduncle in turn subtended by a bract. e. Bracteoles with marginal glands near base. f. Flower, posterior petal uppermost. g. Androecium laid out, adaxial view above, abaxial view below, the stamen fifth from left opposite posterior petal. h. Gynoecium, anterior style in center. i. Distal portion of style. j. Samaras, adaxial view (left) and abaxial view (right). k. Enlargement of dorsal wings on samara. l. Embryo. Scale bar equivalents: a, 4 cm; b, c, 4 mm; d, 8 mm; e, 4 mm; f, 6.7 mm; g, h, 2.7 mm; i, 0.8 mm; j, 1 cm; k, 4 mm; l, 2.2 mm. Based on: a–i, Cabrera C. 5549, MICH; j–l, Matuda 3099, MICH. Drawn by Karin Douthit. © University of Michigan Herbarium.
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Keys: Central America (flowers, fruits)