1. Bond , P. Goldblatt , P. 1984 Plants of the Cape flora. A descriptive catalogue Journal of South African Botany Supplement 13
2. Wood anatomy of Grubbiaceae;Carlquist;Journal of South African Botany,1977
3. Wood anatomy of Bruniaceae;Carlquist;Aliso,1978a
4. Vegetative anatomy and systematics of Grubbiaceae;Carlquist;Botaniska Noliser,1978b
5. Leaf anatomy of Hawaiian geraniums in relation to ecology and taxonomy;Carlquist;Biotropica,1976