Crassula zombensis (Crassulaceae) - a Hardly known species from Malawi (Zomba Plateau) and Mozambique (Serra de Gúruè/Namuli Mt.)

Summary: A review of Crassula zombensis (Crassulaceae), a hardly known species documented only by few collections from Zomba Plateau (Malawi) and the Serra de Gurue (Mozambique), is provided, describing its history, specimens, localities and habitats. On Zomba Plateau, C. zombensis may grow as an epiphyte on Xerophyta kirkii (Velloziaceae); further species (succulents, orchids, herbs) known to occur epiphytically on Xerophyta spp. in Malawi are listed. The IUCN Red List Conservation Status is assessed as Near Threatened (NT).