Plants that produce seeds. They are a subset of the embryo-bytes (land plants) which are a subset of the Traceophytes - vascular land plants. There are five divisions of Spermatophytes Magnoliophyta - the flowering plants. (Angiosperms - produce seeds enclosed in a fruit.) Cycadphyta - cycads Gingophyta - the single species of tree the Gingko Pinophyta - cone bearing trees - conifers Gnetophyta - various woody plants