Cover illustration: The inset cover photograph shows a flower of Tofieldia glutinosa. A member of an early divergent monocot clade, T. glutinosa displays many reproductive traits that most likely characterized the first monocotyledonous angiosperms, including a monosporic female gametophyte, proliferating antipodals and helobial endosperm development. See Holloway and Friedman (pp. 167-182).
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