Trimerophytopsida
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Trimerophytopsida is a class of early vascular plants from the Devonian, informally called trimerophytes. It contains genera such as Psilophyton. This group is probably paraphyletic, and is believed t
Psilophyton dawsonii rev
Vascular plant
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Vascular plants, also called tracheophytes or collectively Tracheophyta, are plants that have lignified tissues for conducting water and minerals throughout the plant. They also have a specialized non
Trimerophytopsida
…Trimerophytopsida (or Trimeropsida) is a class of early vascular plants from the Devonian, informally called trimerophytes. It contains genera such as Psilophyton. This group is probably paraphyletic, and is believed to be…
Selaginella uncinata Spring
Nymphaea alba flower and leaves DSC 3326w
Xylem elements in the shoot of a fig tree (Ficus alba), crushed in hydrochloric acid