Cormophytes (Cormophyta) are the "plants differentiated into roots, shoots and leaves, and well adapted for life on land, comprising pteridophytes and the Spermatophyta."^[1] This group of plants include mosses, ferns and seed plants.^[2] These plants differ from thallophytes, whose body is referred to as the thallus, i.e. a simple body not differentiated into leaf and stem, as of lichens, multicellular algae and some liverworts.^{[citation needed]}