摘要
According to cronquist naturla system, there are more than two hundred speciesof seed plants, belorg to ninety families: eight familres of Gymnospermae and eighty-two families of Angiospermae.
According to cronquist naturla system, there are more than two hundred speciesof seed plants, belorg to ninety families: eight familres of Gymnospermae and eighty-two families of Angiospermae.
出处
《怀化师专学报》
1996年第6期170-174,共5页
Journal of Huaihua Teachers College
