A new species of Anthurium (Araceae) from Mexico and resurrection of Anthurium macdougallii

Anthurium hentrichianum Diaz Jim., Perez-Farr. & Croat a new species belonging to A. section Andiphilum (Schott) Croat from the Sierra de Juarez, north of Oaxaca, Mexico is described and illustrated. This new species is characterized by its large size (up to 80 cm long), broadly sulcate petioles with acute margins, long geniculum (2.0-3.5 cm long) and broadly ovate to oblong-triangular blades (56-68 cm long) with basal, and primary lateral veins usually tinged red-purple on the lower surface. Based on a detailed review of herbarium specimens, and a comparison with specimens collected at the type localities of A. andicola Liebm. and A. macdougallii Matuda, we conclude that A. macdougallii, a taxon currently considered to be a synonym of A. andicola is a distinct species, and A. oaxacamonticola Matuda is synonymized to A. macdougallii. Anthurium andicola and A. macdougallii are re-described with a more complete description, using fertile, living and dry material collected at its type localities.