Cupido, C. N., W. M. M. Eddie, and L. R. Tiedt. “SYSTEMATIC AND ECOLOGICAL SIGNIFICANCE OF SEED COAT MORPHOLOGY IN SOUTH AFRICAN CAMPANULACEAE SENSU STRICTO”. Edinburgh Journal of Botany 68, no. 3 (October 18, 2011): 351–371. Accessed September 15, 2026. https://journals.rbge.org.uk/ejb/article/view/1448.