ORIGIN AND SYSTEMATICS OF HIGHER PLANTS

Higher plants include 9 sections with about 3000 species. It is assumed that higher plants originated from some marine algae. Fossil remains of higher plants are known from the Silurian period. The taller plants are systematically divided into the following sections: rhinotypes, zoosterophylls, lichens, plauntophyses, psilotophytes, sedges, sedges, pines, and magnolias. Higher plants differ from lower plants by the complex structure of their bodies, their adaptation to growth on the ground, and sexual and asexual reproduction. The cells of sexual reproduction are multicellular. Some of their species also live in the water environment. Higher plants are among the oldest green algae by origin. Their origin and development are in two different directions, gametophyte, and sporophyte. The first ancestors of higher plants are basal plants.