Microsteira diotostigma. a. Fruiting branch. b. Node with interpetiolar stipules. c. Base of leaf, abaxial view, with marginal glands. d. Glands on abaxial surface of lamina. e. Node with axillary clusters of flowers, with peduncles shown, pedicels removed. f. Bract subtending peduncle bearing two bracteoles. g. Bract (left) and bracteole (right). h. Pistillate flower from above. i. Staminate flower from above. j. Stamens from staminate flower, adaxial view (left) and abaxial view (right). k. Staminodes from pistillate flower, adaxial view (left) and abaxial view (right). l. Gynoecium. m. Samaras, adaxial view (left), lateral view (center), abaxial view (right). n. Embryo. o. Old flower after fall of samaras, showing trilobed disc. Scale bar equivalents: a, 4 cm; b, 2 mm; c, 4 mm; d, 2 mm; e, 4 mm; f, g, 2 mm; h, i, 5.7 mm; j–l, 2 mm; m, 1.3 cm; n, 2.7 mm; o, 4 mm. Based on: a­–g, m–o, Miller & Keating 4515, MO; h, k, l, Perrier 5607, P; i, j, Service Forestier de Madagascar 26208, P. Drawn by Karin Douthit. © University of Michigan Herbarium.
other drawing: M. ambovombensis
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caption, smaller image