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Flowering plants

      The flowering plants (angiosperms), also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies (derived characteristics). These characteristics include flowers, endosperm within the seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from gymnosperms around 245–202 million years ago, and the first flowering plants known to exist are from 140 million years ago. They diversified enormously during the Lower Cretaceous and became widespread around 100 million years ago, but replaced conifers as the dominant trees only around 60–100 million years ago.

Source: http://en.wikipedia.org/wiki/Flowering_plant
Ulmus pyramidalisBůžek (1971), Pl. 19, fig. 9 ČB370
Ulmus pyramidalisAD Bůžek (1971) ČB386
Ulmus pyramidalisAD Bůžek (1971) ČB393
Ulmus pyramidalisAD Bůžek (1971) ČB400
Ulmus pyramidalisBůžek (1971), Pl. 20, fig. 16 ČB403
Ulmus pyramidalisAD Bůžek (1971) ČB412
Ulmus pyramidalisAD Bůžek (1971) ČB415
Ulmus pyramidalisBůžek (1971), Pl. 20, fig. 2, 3 ČB362
Ulmus pyramidalisBůžek (1971), Pl. 19, fig. 7 ČB394
Ulmus pyramidalisBůžek (1971), Pl. 19, fig. 17, Pl. 21, fig. 8 ČB397
Ulmus pyramidalisAD Bůžek (1971) ČB402
Ulmus pyramidalisAD Bůžek (1971) ČB480
Ulmus pyramidalisAD Bůžek (1971) ČB414
Ulmus pyramidalisBůžek (1971), Pl. 20, fig. 14 ČB80
Ulmus pyramidalisAD Bůžek (1971) ČB404
Ulmus pyramidalisAD Bůžek (1971) ČB410
Ulmus pyramidalisBůžek (1971), Pl. 19, fig. 18 ČB469
Ulmus pyramidalisAD Bůžek (1971) ČB471
Ulmus pyramidalisBůžek (1971), Pl. 19, fig. 3 ČB474
Ulmus pyramidalisAD Bůžek (1971) ČB481
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]