Engler system
In the major post-Darwinian taxonomic systems such as the Engler system it was used to divide the Embryophyta into two divisions, one the Archegoniatae (also called Zoidogamae) containing bryophytes and pteridophytes and the other the Siphonogamae containing the gymnosperms and angiosperms. Campbell indicates that there was both a "sensu lato" usage which included the gymnosperms, or a "sensu stricto" usage as in his book, applied only to bryophtes and pteridophytes.