Infraspecific classification and geographical distribution of Monvillea phatnosperma (Cactaceae).

Abstract

Infraspecific classification and geographical distribution of Monvillea phatnosperma (Cactaceae). Some aspects of morphology, taxonomy and nomenclature about Monvillea phatnosperma (K. Schum.) Britton & Rose (Cactaceae), a species native from the north of the ‘Great Chaco’ and adjacent areas, are considered. M. phatnosperma var. arenasii var. nov. is described and ilustrated in replacement of Monvillea kroenleinii R. Kiesling –nom. inval

Keywords

• Cactaceae
• Chaco
• Monvillea phatnosperma var. arenasii