Angiosperms (flowering plants) are the most diverse of all major lineages of land plants and
the dominant autotrophs in most terrestrial ecosystems. Their evolutionary and ecological …

Abstract Ephedra, Gnetum, and Welwitschia constitute the gymnosperm order Gnetales of
still unclear phylogenetic relationships within seed plants. Here we review progress over the …

The head and mouthpart structures of 11 species of Eurasian scorpionflies represent three
extinct and closely related families during a 62-million-year interval from the late Middle …

Angiosperms are the most diversified plant group in the world, being represented by ca
300,000 species in about 400 families. Like all of Life, including ourselves, they have had …

We review recent advances on glossopterid reproductive biology and their implications for
seed plant phylogeny and the ecology of this widespread Permian Gondwanan group …

Pollen germination and pollen tube growth are common to all seed plants, but these
processes first developed in gymnosperms and still serve for their successful sexual …

The Ephedra lineage can be traced at least to the Early Cretaceous. Its characteristically
polyplicate pollen is well-represented in the fossil record and is frequently used as an …

The ecogroup classification based on the growth-form of plants (Eco-Plant model) is widely
used for extant, Cenozoic, Mesozoic, and Paleozoic paleoenvironmental reconstructions …

In contrast to woody habit with secondary growth, truthful herbaceous habit lacking
secondary growth is restricted to angiosperms among seed plants. Although angiosperms …

Abstract Gnetum (Gnetales: Gnetaceae) constitutes an evolutionarily isolated gymnosperm
clade, comprising about 40 species that inhabit tropical areas of the world. While its closest …