1. An enumeration of the species of Acanthaceae from the continent of Africa and the adjacent islands;Anderson,1863
2. An enumeration of the species of the Indian Acanthaceae;Anderson;J. Linn. Soc. Bot.,1867
3. Classification of the Acanthaceae: A Southern African perspective;Balkwill;Monogr. Syst. Bot. Mo. Bot. Garden,1988
4. Acanthaceae;Bentham,1876
5. Notes on some acanthaceous genera of controversial position;Bremekamp;Acta Bot. Neerl.,1955