Discussion on Population Characteristics of Pinus massoniana and Pinus taiwanensis's Natural Crossbreeds

Jiangxi's Lushan Mountain and Jiulianshan Mountain is below the boundary of Pinus taiwanensis's vertical distributing,in which there are natural crossbreeds of Pinus massoniana and Pinus taiwanensis.They are generally called as Pinus sp.In fact,their leaves' resin ducts have both edge accruing and neutrality.And their character is stable and has qualitative difference with Pinus massoniana and Pinus tawanensis.Therefore,it is suggested that Pinus sp.be denominated as Pinus sp.