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 …

Angiosperms first appeared during the Early Cretaceous, and within 30 million years they
reigned over many floras worldwide. Associated with this rise to prominence, angiosperms …

The flowering plants–angiosperms–appeared during the Early Cretaceous period and within
10–30 Myr dominated the species composition of many floras worldwide. Emerging insights …

Better understanding of the functional biology of early angiosperms may clarify ecological
factors surrounding their origin and early radiation. Phylogenetic studies identify Amborella …

Stomatal architecture—the number, form, and arrangement of specialized epidermal cells
associated with stomatal guard cells—of 46 species of basal angiosperms representing all …

Over the past 25 years, discoveries of Early Cretaceous fossil flowers, often associated with
pollen and sometimes with vegetative parts, have revolutionized our understanding of the …

To investigate relationships and character evolution in the angiosperm family
Chloranthaceae, and to integrate fossil specimens into the phylogeny of extant taxa, a …

Pulsatilla (Ranunculaceae) comprises about 40 species, many of which have horticultural
and/or medicinal importance. However, the recognition and identification of wild Pulsatilla …

Stomatal morphology of 69 dicot species distributed in 64 genera and 28 families was
examined by light and scanning electron microscopy. In all 6 types of stomata ie …

Pseudoasterophyllites cretaceus from the Cenomanian of Bohemia was recently recognized
as an angiosperm by association with stamens containing monosulcate pollen of the …