The distribution of Anthurium (Araceae) in Mexico, Middle America and Panama.

Author(s): 
Croat, T.B.
Year: 
1986
Journal: 
Selbyana
Volume: 
9
Issue: 
1
Page Range: 
94–99
Keywords: 
Araceae, Anthurium, phytogeography, Mexico, Middle America, Panama, species diversity, distribution
Abstract: 
The phytogeography of Anthurium (Araceae) is discussed for Central America on a sectional basis and notes are presented about the general distribution of each section represented as it occurs elsewhere. Out of a total of 221 species in Central America, Mexico has 41 species, Guatemala 25, Nicaragua 30, Costa Rica 76 and Panama 155. Section Porphyrochitonium is the largest section with 56 species, followed by Belolonchium (46 species), Pachyneurium (32 species), Calomystrium (23 species) and Xialophyllium (12 species); all of the remaining 12 sections contain fewer than eight species, with eight sections having four or fewer species. While species in section Schizoplacium and section Belolonchium (both A. andicola Liebm. alliance, and A. verapazense Engl. alliance) are predominantly or wholly Mexican, most sections have the bulk of their species in Costa Rica and Panama, especially the latter. Anthurium habitats in Mexico tend to have relatively low species diversity, while those in Costa Rica and Panama have high species diversity.