-Bryophites: Moss, little better than algae, no sclerenchyma, motile gametes.
-Pteridophytes: Ferns. Better, but still backward. They have advanced vascular tissues, sclerenchyma, but reproduce via sporulation, and have two different phases in their life cycle. The gametophyte phase is pronounced, containin a prothallus.
-Coniferophytes: Pine trees. They contain sophisticated vasculature and root systems. They have a markedly reduces gametophytic phase, but have no triploid endosperm.
-Anthophytes: Most advanced. They're any tree that's not a conifer. They have flowers, and triploid endosperms in their seeds. They are divided into monocots and dicots, of which the former are more advanced.
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