论文部分内容阅读
榕属Ficus是桑科中一个大属,全属约有1000个以上的原生种,我国约有120种。广泛分布于全世界各热带和亚热带地区,乔木、灌木或呈攀缘状,有乳汁。有些种类的果实被动物吃了以后,随粪便将种子带到其他树上。萌发后附生在其茎干上,状如藤本,气生根攀绕在附生树上。以后等气生根加厚连结成网状,可将寄主(附生树)缠死而自己成为一大乔木。花单性同株,甚小,着生于由肉质花托形成的无花果内。
Ficus Ficus is a large genus in Somber, all of which have more than 1000 native species and about 120 species in our country. Widely distributed in tropical and subtropical regions around the world, trees, shrubs or climbing, with milk. Some species of fruit are eaten by the animals and carry the seeds to other trees with the excrement. After germination epiphytic on its stem, like a rattan, air root climbing in the epiphytic tree. Later, such as air root thickened into a mesh thickened, can host (epiphytic) stranded and become a big tree. Flowers unisexual strains, very small, was born in the fleshy torus formed within the fig.