Romulea

Manning, John C. & Goldblatt, Peter, 2001, the Arabian Peninsula and Socotra including new species, biological notes, and a new infrageneric classification, Adansonia (3) 23 (1), pp. 59-108 : 69

4’. Corms with a prominent basal ridge, more than half as wide as the corm; tunics split into fine fibrils ........ ...................................................................................................................................... Section 2. Ciliatae