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Diversity of legume seed size and embryo morphology. A, Legume seed shape and size variation. Scale bar = 1 cm. Adapted and modified from Vaughan et al. (1997). B, Variation in embryo-proper (ep) and suspensor (s) morphologies within and between legume tribes. Embryos are not drawn to scale. Images were adapted and modified from Martin (1914), Lersten (1983), and Chamberlin et al. (1994). Pc, P. coccineus; Gm, G. max.
