Included here is the island of Socotra in the Arabian Sea just north of Somalia.
Of the endemic vascular plants so far recorded there are about 298 species in 155 genera and 59 families. There are 8 endemic genera (marked red) but no endemic families. However, the family Dirachmaceae was thought to be endemic but recently a second species was found in Somalia.
Balgooy, Van. M. M. J. 1969. A study of the diversity of island floras. Blumea, 17: 139-178.
Brown, G., Mies, B. A. 2012. Vegetation Ecology of Socotra. Plant and Vegetation, Vol. 7. Springer.
Chapman, V. J. 1977. Africa B - the remainder of Africa. In: Ecosystems of the World 1 - Wet Coastal Ecosystems. Ed. V. J. Chapman. Elsevier Scientific Publishing Company.
Gwynne, M. D. 1968. Socotra. In: Conservation of Vegetation in Africa south of the Sahara. Eds. I. Hedberg and O. Hedberg. Acta Phytogeogrraphica Suecica, 54: 275-279.
Miller, A. G. & Morris, M. 2004. Ethnoflora of the Soqotra Archipelago. The Royal Botanical Gardens, Edinburgh.
Milner, J. E. 1992. The Tree Book. Academic Press.
Popov, G. B. 1957. The vegetation of Socotra. Journal of the Linnean Society Botany, 55: 706-720.
Tardelli, T. & Baldini, R. M. 2000. Botanical Report on the Island of Socotra (Yemen). Portugaliae Acta Biologica, 19: 443-453.
White, F. 1983. The Vegetation of Africa. UNESCO.