Tetrapterys mucronata. a. Flowering branch. b. Node with interpetiolar stipules. c. Abaxial base of lamina to show glands. d. Abaxial surface of lamina to show gland. e. Umbel of flower buds, from a specimen with eglandular sepals. f. Flower bud, from a specimen with gland-bearing sepals. g. Flower, posterior petal uppermost. h. Androecium laid out, abaxial view, the shortest stamen opposite posterior petal. i. Gynoecium, anterior style to right. j. Distal portion of a posterior style. k. Sepal from a mature fruit, with stalked glands. l. Samaras, abaxial view (left) and adaxial view (right). m. Embryo. Scale bar equivalents: a, 4 cm; b–d, 4 mm; e, 8 mm; f, g, 4 mm; h, 2.7 mm; i, 2 mm; j, 0.8 mm; k, 2.7 mm; l, 1.3 cm; m, 3.3 mm. Based on: a–e, g–k, Prévost 3267, MICH; f, Mutchnick 715, MICH; l, Oldeman 1632, MICH; m, Le Prieur in 1838, MICH. Drawn by Karin Douthit. © University of Michigan Herbarium.
all drawings
Keys: Central America (flowers, fruits)
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