Leaves or their functional analogues provide outstanding opportunities for comparative
studies. Here, I use leaves to illustrate the crucial role of ecological, biogeographic and …

Information on the fossil record of angiosperms has expanded dramatically over the past
twenty-five years, and in particular the discovery of numerous mesofossil floras with fossil …

Originally published in 1993, this second edition of a successful textbook describes and
explains in a refreshingly clear way the origin and evolution of plants as revealed by the …

The field of plant taxonomy has transformed rapidly over the past fifteen years, especially
with regard to improvements in cladistic analysis and the use of new molecular data. The …

Mutualistic interactions between ants and plants involve rewards offered by plants and
services performed by ants in a mutually advantageous relationship. The rewards are …

The family Euphorbiaceae appears to be monophyletic, despite proposals for segregate
families. The Euphorbiaceae display a great variety of growth forms, including at least 17" …

Morphological, stratigraphic, and sedimentological analyses of Early Cretaceous pollen and
leaf sequences, especially from the Potomac Group of the eastern United States, support the …

Monoecious or dioecious trees, shrubs, or herbs, sometimes succulent or scandent; stems
with or without laticifers; indumentum simple, malphighiaceous, stellate, or lepidote …

We report a series of phylogenetic analyses of selected taxa from several presumably
closely related groups of angiosperm families, ie, Apocynaceae/Asclepiadaceae …

Molecular data on relationships within angiosperms confirm the view that their increasing
morphological diversity through the Cretaceous reflected their evolutionary radiation …