5Park H J, Kwon S H, Han Y N, et al. Apoptosis Inducing costunolide and a novel acyclic monoterpene from the stem bark of Magnolia sieboldii[J]. Arch Pharm Res. ,2001,24(4) :342-348.
6Daniele C,Adrian,Sara O (eds). The red list of Magnoliaceae [M]. Cambridge:Fauna & Flora International,2007.
7Wheeler N C, Guries R P. Population structure, genic diversity, and morphological variation in Pinus contorta Dougl[J]. Can J For Res, 1982,12,595-606.