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Gymnosperms

      The gymnosperms are a group of seed-bearing plants that includes conifers, cycads, Ginkgo, and Gnetales. The term "gymnosperm" comes from the Greek word gymnospermos (γυμνόσπερμος), meaning "naked seeds", after the unenclosed condition of their seeds (called ovules in their unfertilized state). Their naked condition stands in contrast to the seeds or ovules of flowering plants (angiosperms), which are enclosed during pollination. Gymnosperm seeds develop either on the surface of scale- or leaf-like appendages of cones, or at the end of short stalks (Ginkgo). The gymnosperms and angiosperms together comprise the spermatophytes or seed plants. By far the largest group of living gymnosperms are the conifers (pines, cypresses, and relatives), followed by cycads, Gnetales (Gnetophyta, Ephedra and Welwitschia), and Ginkgo (a single living species).

Source: http://en.wikipedia.org/wiki/Gymnosperms
Taxodium dubiumAD Bůžek (1971)foto ČB368
Taxodium dubium p2674
Taxodium dubium p2939
Taxodium dubiumBůžek (1971), Pl. 8, fig. 5 ČB154
Taxodium dubiumAD Bůžek (1971) ČB336
Taxodium dubiumBůžek (1971), Pl. 8, fig. 3, 4 ČB153
Taxodium dubiumBůžek (1971), Pl. 8, fig. 6 ČB73
Taxodium ČB803
Taxus Bůžek, Holý, Kvaček (1976)Pl. II, fig. 2 ČB677
Tenellisporites branisoviensisKnobloch (1984), Pl. XVI, fig. 4 EK73
Tenellisporites branisoviensisKnobloch (1984), Pl. XVI, fig. 8 EK74
Tenellisporites branisoviensisKnobloch (1984), Pl. XVI, fig. 3 EK59
Tenellisporites branisoviensisKnobloch (1984), Pl. XVI, fig. 7 EK60
Tenellisporites branisoviensisKnobloch (1984), Pl. XVI, fig. 5 EK69
Tenellisporites branisoviensisKnobloch (1984), Pl. XVI, fig. 6 EK71
Tenellisporites branisoviensisKnobloch (1984), Pl. XVI, fig. 2 EK72
Tenellisporites branisoviensisKnobloch (1984), Pl. XVI, fig. 9 EK70
Tenellisporites branisoviensisKnobloch (1984), Pl. XVI, fig. 1 EK66
Tenellisporites heliosKnobloch (1984), Pl. XIV, fig. 7 EK100
Tenellisporites heliosKnobloch (1984), Pl. XIV, fig. 1 EK97

Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]