Anales del Jardín Botánico de Madrid, Vol 60, No 2 (2002)

On the floristic relationships between Cuba and other Tropical regions based on the distribution of Cuban Asplenium L. species (Aspleniaceae, Pteridophyta)


https://doi.org/10.3989/ajbm.2002.v60.i2.100

Ledis Regalado Gabancho
Instituto de Ecología y Sistemática, Cuba

Carlos Sánchez Villaverde
Jardín Botánico Nacional, Cuba

Abstract


Based on the world distribution of the species of Asplenium occurring in Cuba, a presenceabsence matrix for 17 selected geographical áreas was constructed. This matrix was separately evaluated with the Similarity Index of Sorensen and Parsimony Analysis of Endemicity (PAE). The floristic relationships between Cuba and the rest of tropical regions are presented and discussed. Similar results were obtained using both methods. The closest relationships among the Greater Antilles islands were confirmed from the composition of their pteridological floras. The continental affinity of Greater Antilles flora was corroborated.

Keywords


Asplenium; Aspleniaceae; Cuba; phytogeography

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