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Callaeum septentrionale. a. Flowering branch. b. Node with epipetiolar stipules. c. Base of lamina, abaxial view, showing marginal glands. d. Flower bud in umbel. e. Flower, posterior petal uppermost. f. Petals, abaxial view, posterior petal (left) and lateral petal (right). g. Androecium laid out, abaxial view, the smallest stamen opposite posterior petal. h. Gynoecium. i. Distal portion of styles, adaxial view (left) and abaxial view (right). j. Samara, abaxial view. k. Samara, abaxial view. Scale bar equivalents: a, 4 cm; b, c, 4 mm; d, 8 mm; e, 1.3 cm; f, 8 mm; g, h, 2.7 mm; i, 1.3 mm; j, k, 2.7 cm. Based on: a–i, Daniel 287, MICH; j, Anderson 13314, MICH; k, Anderson & Laskowski 4078, MICH. Drawn by Karin Douthit. © University of Michigan Herbarium.
all drawings

other drawings:

C. antifebrile

C. johnsonii

C. macropterum

C. malpighioides

C. psilophyllum

Keys: USA (flowers, fruits)