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Cover The cone-like inflorescence of the basal monocot Acorus calamus, comprises many small flowers, and is accompanied by a peculiar leaf (spathe). Refined analyses of EST data generated for species holding key positions in the angiosperm phylogeny provide evidence for genome-wide duplication events throughout the history of flowering plants. (Photograph by Matyas Buzgo. [For details, see Cui et al., pp. 738-749.])
