This class is often split into five separate classes by modern classifications because the relationships among each other are not particularly close.
This class is often split into five separate classes by modern classifications because the relationships among each other are not particularly close. The class Pteridospermae, or seed ferns, contains no living members, and members of an odd cone-bearing group called gnetophytes (NEE-tuh-fites) have vascular systems. Zamia is a genus of cycad which occurs in Florida, and the gingkos are represented today by only one species. FTP, what is this group containing the conifers which makes up the subdivision Spermopsida along with the angiosperms?
This class is often split into five separate classes by modern classifications because the relationships among each other are not particularly close.
gynmosperms or gymnospermae