A taxonomic synopsis of unifoliolate continental African Vepris (Rutaceae)

Summary Descriptions and illustrations are presented for three new species to science, Vepris udzungwa Cheek , V. lukei (both Udzungwa Mts, Tanzania), robertsoniae Q.Luke & (SE Kenyan kaya forests), in the context of a synoptic taxonomic revision with an identification key all known unifoliolate taxa continental Africa. The described illustrated, while remaining 10 given skeletal treatments (lacking descriptions). One widespread montane eastern Africa is renamed as simplex because its previous name, simplicifolia (Engl.) Mziray, predated by Endl. (basionym Sarcomelicope (Endl.) T.G.Hartley, Australia, Lord Howe Norfolk Islands, New Caledonia). combination hanangensis var. unifoliolata (Kokwaro) made. Full or provisional conservation assessments using IUCN 2012 standard. Of 13 taxa, nine considered threatened near threatened, which one Near Threatened, Vulnerable, two Endangered, Critically latter, both Uluguru Mts Tanzania, possibly extinct globally, although not yet assessed on Red List.