Botany (Plant Biology) Botany is the study of plants or plantlike relatives. It is estimated that there are about 300,000 to 500,000 species of plants.
Seedless Plants
Seedless Plants. Plant Evolution l Nonvascular Seedless plants –(Ordovician - 475 mya) l Vascular Seedless plants –(Devonian - 400 mya) l Vascular Seed.
