| 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
Paliurus tilaefolius | AD Bůžek (1971) | | | ČB366 | Paliurus tilaefolius | Bůžek (1971), Pl. 33, fig. 12 | | | ČB344 | Paliurus tilaefolius | AD Bůžek (1971) | | | ČB343 | Paliurus tilaefolius | Bůžek (1971), Pl. 33, fig. 9 | | | ČB288 | Paliurus tilaefolius | Bůžek (1971), Pl. 33, fig. 6, 7 | | | ČB242 | Paliurus tilaefolius | AD Bůžek (1971) | | | ČB383 | Paliurus tilaefolius | AD Bůžek (1971) | | | ČB291 | Paliurus tilaefolius | Bůžek (1971), Pl. 33, fig. 11 | | | ČB285 | Paliurus tilaefolius | Bůžek (1971), Pl. 33, fig. 14 | | | ČB293 | Paliurus tilaefolius | AD Bůžek (1971) | | | ČB289 | Paliurus tilaefolius | Bůžek (1971), Pl. 33, fig. 17 | | | ČB281 | Paliurus tilaefolius | AD Bůžek (1971) | | | ČB292 | Paliurus tilaefolius | Bůžek (1971), Pl. 33, fig. 20 | | | ČB332 | Paliurus tilaefolius | Bůžek (1971), Pl. 34, fig. 15 | | | ČB354 | Paliurus tilaefolius | Bůžek (1971), Pl. 33, fig. 21 | | | ČB333 | Paliurus tilaefolius | AD Bůžek (1971) | | | ČB290 | Paliurus tilaefolius | Bůžek (1971), Pl. 33, fig. 18 | | | ČB284 | Paliurus tilaefolius | Bůžek (1971), Pl. 33, fig. 13 | | | ČB259 | Paliurus tiliaefolius | Bůžek (1971), Pl. 34, fig. 2 | | | ČB11 | Paliurus tiliaefolius | | | | PB1152 |
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