1019. Plants considered with reference to their general structure are separated into two grand divisions, called CELLULA'RES and VASCULA'RES.-The Cellulares answer to the Linnᄉan Cryptogamia, and are also called Acotyledoneᄉ; the Vasculares answer to the rest of the Linnᄉan system, and are sometimes called Phanerogamia and Cotyledoneᄉ.