秦岭凤县地区桑寄生科植物资源调查

Investigation on Lorantheceae in Feng County of Qinling Mountains

桑寄生科植物在我国分布较为广泛,具有特殊的生活习性。为了摸清秦岭凤县地区桑寄生类植物的种类,对该地区进行了实地调查。结果表明,凤县地区分布的桑寄生科植物主要为北桑寄生(Loranthus tanakae)和桑寄生(Taxillus sutchuenensis)2种,北桑寄生的种群数量大于桑寄生。2种桑寄生科植物在该地区的主要寄主均为锐齿栎(Quercus aliena var.acuteserrata)。此外,对这2种寄生植物的生物学特征展开初步研究,并讨论了生活习性及生物学特征的差异对其种群数量的影响。

Lorantheceae were widely distributed in China and the species of this family usually presents special habits.A series of investigation on Lorantheceae were carried out within Feng County.Two species were found in the county,i.e.Loranthus tanakae and Taxillus sutchuenensis.The main host of these parasitic plants is Quercus aliena var.acuteserrata.We compared the biological characteristics of these two species,and discussed the influence of the different habits or biological characteristics of these two species on their distributions.