Chemosystematics is a common tool in systematics and taxonomy of extant plants.
Terpenoids have been found to be especially valuable for chemosystematic investigations of …

Premise of the Study Conifers are an important living seed plant lineage with an extensive
fossil record spanning more than 300 million years. The group therefore provides an …

The ability of plants to supply water to their leaves is intimately associated with survival.
Water supply to leaves depends on maintaining an intact water column in the xylem from the …

The major taphonomic processes that control insect preservation in carbonate rocks
(limestones, travertines and nodules) are biological: insect size and wingspan, degree of …

Efforts to resolve Darwin's “abominable mystery”—the origin of angiosperms—have led to
the conclusion that Gnetales and various fossil groups are sister to angiosperms, forming the …

Phylogenetic relationships among the five groups of extant seed plants are presently quite
unclear. For example, morphological studies consistently identify the Gnetales as the extant …

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

Parsimony analysis of matK and rbcL sequence data, together with a nonmolecular
database, yielded a well‐resolved phylogeny of Cupressaceae sensu lato. Monophyly of …

Living gymnosperms comprise only a little more than 1000 species, but represent four of the
five main lineages of seed plants, including cycads, ginkgos, gnetophytes and conifers. This …

Phylogenetic definitions are provided for the names of 53 clades of vascular plants.
Emphasis has been placed on well‐supported clades that are widely known to non …