Article
A new species of Phaseolus (Fabaceae) from west-central Mexico
Fecha
1999Autor
Ramirez-Delgadillo, R.
Delgado-Salinas, A.
Institución
Resumen
We report the existence of a new species, Phaseolus albescens, from western Mexico, with close affinities to P. vulgaris, P. coccineus, P. costaricensis, and particularly to P. polyanthus, and describe plants commonly occurring in wild habitats, examine morphological and anatomical characters and give notes on observations made on its floral biology. An illustration of the plant, photographs of its pollen, and stem anatomy are provided. Also, a key to the species of the Phaseolus vulgaris group is presented.