巴西地下树蓝花楹（Jacaranda decurrens Cham.）的寿命
Longevity of the Brazilian underground tree Jacaranda decurrens Cham.
作者信息
Alves Ruy J V, Da Silva Nílber G, Fernandes Júnior Aluísio J, Guimarães Alessandra R
机构信息
Museu Nacional, Departamento de Botânica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
出版信息
An Acad Bras Cienc. 2013 Apr-Jun;85(2):671-7. doi: 10.1590/S0001-37652013005000038.
Underground trees are a rare clonal growth form. In this survey we describe the branching pattern and estimate the age of the underground tree Jacaranda decurrens Cham. (Bignoniaceae), an endangered species from the Brazilian Cerrado, with a crown diameter of 22 meters. The mean age calculated for the individual was 3,801 years, making it one of the oldest known living Neotropical plants.
地下树是一种罕见的克隆生长形式。在本次调查中，我们描述了地下树巴西蓝花楹（紫葳科）的分枝模式并估算了其年龄，该物种是来自巴西塞拉多的濒危物种，树冠直径达22米。计算得出该个体的平均年龄为3801岁，使其成为已知最古老的新热带植物之一。
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