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Longevity of the Brazilian underground tree Jacaranda decurrens Cham.

Ruy J V Alves1, Nílber G Da Silva, Aluísio J Fernandes Júnior

  • 1Museu Nacional, Departamento de Botânica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil. ruyvalka@yahoo.com

Anais Da Academia Brasileira De Ciencias
|July 6, 2013
PubMed
Summary
This summary is machine-generated.

Discover the ancient underground tree Jacaranda decurrens, an endangered species from Brazil's Cerrado. This rare clonal growth form, estimated at 3,801 years old, is one of the oldest Neotropical plants ever found.

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Area of Science:

  • Botany and Plant Science
  • Ecology and Conservation
  • Neotropical Flora

Background:

  • Underground trees represent a rare clonal growth form, with limited documented examples.
  • The Brazilian Cerrado harbors unique and often endangered plant species, necessitating further research and conservation efforts.

Purpose of the Study:

  • To describe the unique branching pattern of the underground tree Jacaranda decurrens.
  • To estimate the age of a remarkably large individual of Jacaranda decurrens.
  • To contribute to the understanding and conservation of endangered species in the Brazilian Cerrado.

Main Methods:

  • Field survey to document the branching morphology of the underground tree.
  • Age estimation techniques applied to determine the longevity of the clonal organism.
  • Diameter measurement of the crown to assess the scale of the individual plant.

Main Results:

  • Detailed description of the branching pattern of Jacaranda decurrens.
  • The surveyed individual Jacaranda decurrens exhibited a crown diameter of 22 meters.
  • The mean age was calculated to be 3,801 years, identifying it as one of the oldest known living Neotropical plants.

Conclusions:

  • Jacaranda decurrens represents a significant example of a long-lived underground tree.
  • The species' age highlights the potential for extreme longevity in Neotropical flora.
  • Findings underscore the importance of conserving the Brazilian Cerrado's unique biodiversity, including its ancient plant life.