Angiosperms and their flowers have greatly diversified into an overwhelming array of forms
in the past 135 million years. Diversification was shaped by changes in climate and the …

Friedman WE, RC Moore, and MD Purugganan. 2004. The evolution of plant development.
Am. J. Bot. 91: 1726–1741. Friis EM, PR Crane, and KP Pedersen. 1997. Fossil history of …

The construction of classifications, as well as the understanding of biological diversity,
depends upon a careful comparison of attributes of the organisms studied (Stuessy, 1990). It …

The present classification of extant flowering plants (Magnoliopsida) updates and revises
those presented previously by bringing together the vast majority of new information …

Abstract Background and Aims Physical dormancy (PY) occurs in seeds or fruits of 18
angiosperm families and is caused by a water-impermeable palisade cell layer (s) in seed or …

Eudicots and their currently recognized major subclades are characterized as to floral
structure (including some “embryological” features) based on ca. 3000 original publications …

Cistaceae consist of eight genera and about 180 species. Some taxonomic limits and
relationships within the family remain unresolved when relying exclusively on morphological …

We present a detailed comparative ontogenetic analysis of pseudanthia of representatives
of all three subtribes of Euphorbieae (Euphorbiinae, Neoguillauminiinae, Anthosteminae) in …

Physical dormancy (PY) occurs in at least 18 angiosperm plant families and is caused by
water-impermeable palisade cells in seed (or fruit) coats. Breaking of PY involves disruption …

A survey of our own comparative studies on several larger clades of rosids and over 1400
original publications on rosid flowers shows that floral structural features support to various …