Acridocarpus spectabilis. a. Flowering branch. b. Base of lamina, abaxial view. c. Flower bud subtended by a bract and two bracteoles. d. Calyx from below, showing two tiny glands at base of two sepals. e. Flower, with two posterior petals uppermost. f. Stamens, lateral view (left) and adaxial view (right). g. Distal portion of anther, adaxial view. h. Gynoecium. i. Cross-section of ovary. j. Distal portion of style. k. Samara, lateral view. l. Ventral areole of nut of samara. m. Embryo. n. Old flower after fall of samaras, showing the pyramidal torus and the persistent sterile locule. Scale bar equivalents: a, 4 cm; b, 8 mm; c, 5.7 mm; d, 8 mm; e, 1.3 cm; f, 5.7 mm; g, 2.7 mm; h, i, 5.7 mm; j, 0.4 mm; k, 4 cm; l–n, 8 mm. Based on: a–j, Jongkind 2016, MO; k–n, Jongkind 2216, MO. Drawn by Karin Douthit. © University of Michigan Herbarium.
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