Typification of aichryson pachycaulon subsp. Praetermissum and description of A. roseum sp. nov. (Crassulaceae) from Gran Canaria, Canary Islands, Spain

Abstract

A neotype and emended description are provided for the rare Gran Canaria endemic Aichryson pachycaulon subsp. praetermissum Bramwell (Crassulaceae) using a gathering from its original type locality. Additionally, A. roseum, a new species locally common on Gran Canaria, is described. Illustrations and comparisons with possibly related biennial plants of A. sect. Aichryson are also provided.