caption, larger image
Cottsia gracilis. a. Flowering branches. b. Base of leaf and adjacent stem to show stipule and marginal processes. c. Detached, relatively broad leaf. d. Flower, posterior petal uppermost. e. Androecium and gynoecium, with two fertile posterior stamens and three anterior staminodes. f. Fertile stamen, adaxial view. g. Anterior carpel. h. Fruit. i. Fruit base and torus with one samara attached by carpophore. j. Seed (left) and nut of samara in longitudinal section with seed removed (right). k. Embryos. Scale bar equivalents: a, 4 cm; b, 4 mm; c, 4 cm; d, 5.7 mm; e, 2.9 mm; f, g, 2 mm; h, 1 cm; i, 5.7 mm; j, k, 4 mm. Based on: a, b, Monson 8, CAS; c–g, Anderson 12552, MICH; h–k, Anderson & Laskowski 3520, MICH. Drawn by Karin Douthit. First published by W. R. Anderson & C. C. Davis in Contr. Univ. Michigan Herb. 25: 164. 2007; reproduced with permission of the authors.
Keys: USA (flowers, fruits)
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other drawing:

C. californica
& C. linearis