R. aurantia
2. Flowers orange to brownish-pink with paler warts………………………………………………………………………………………..………3
3. Flowers ≤ 12 cm across; upper disk ring crispate; lacuna on annulus interior contracted and blunt………………………………………………………………………….….…..R. consuelaoe
3. Flowers ≥ 25 cm across; upper disk ring doubly-dentate with bristles; annulus interior strap-shaped…………………………………………………………………………..……R. balatociana