Parallel evolution of angiosperm‐like venation in Peltaspermales: a reinvestigation of Furcula
Mario Coiro,
Stephen McLoughlin,
Margret Steinthorsdottir
et al.
Abstract:Summary
Leaf venation is a pivotal trait in the success of vascular plants. Whereas gymnosperms have single or sparsely branched parallel veins, angiosperms developed a hierarchical structure of veins that form a complex reticulum. Its physiological consequences are considered to have enabled angiosperms to dominate terrestrial ecosystems in the Late Cretaceous and Cenozoic.
Although a hierarchical‐reticulate venation also occurs in some groups of extinct seed plants, it is unclear whether these are stem relat… Show more
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