Romulea namaquensis

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 : 70

21. Filaments inserted in the middle of the tube, usually red or reddish black; flowers with little or no yellow in the cup ...................................................................................................................... 14. R. namaquensis

21’. Filaments inserted in the lower half of the tube, yellow to orange .......................................................... 22

22. Corm higher than wide with a high, chisel-shaped basal ridge; flowers to 20 mm long; inner bracts usually with conspicuously brown-spotted membranous margins ...................................................................... 23

22’. Corm about as wide as high or wider; flowers to 35 mm long; inner bracts with unspotted or spotted membranous margins ............................................................................................................................ 24