Annotated checklist of Cactaceae in the Catimbau National Park, Pernambuco, Brazil*

Abstract

The cacti found at the Catimbau National Park in Pernambuco state, Brazil, are listed and the phytogeographical significance of the park is highlighted. Two new subspecies are described and the existence of three interspecific hybrids recorded. However, there exist conservation issues in this theoretically protected area.