Rabiea

Compact, tufted, dwarf perennials with fleshy or tuberous rootstock. Leaves 4-6 on a branch, 2 of a pair +/- dissimilar, flattish on upper surface and distinctly to indistinctly keeled on lower surface, pointed from a rather broad base, rarely cylindrical, trigonous to triquetrous; surface rough, with prominent white or blackish green spots or elevations above tannin idioblasts. Flowers solitary, bibracteate, subsessile to shortly pedicelled; opening at midday, closing by evening. Sepals 5(6 or 7) +/- equal, fused at base to form a short hypanthium on which petals and stamens arise. Petals 3- or 4-seriate, obtuse or emarginate, bright yellow to yellowish orange. Stamens papillate below; placentas parietal; stigmas 7-10, slender, papillate. Nectary positioned at upper rim of hypanthium. Ovary bowl-shaped on top; placentas parietal; stigmas 7-10, linear. Fruit a 7-10-locular capsule, close to Titanopsis type but with a rather rounded top and base, also browner and firmer than typical form; valves with wings reaching above halfway up; expanding keels contiguous in basal section, then diverging widely, shortly aristate, almost reaching apex of valve; covering membranes present; closing bodies 0. Seeds +/- pear-shaped, minutely muricate, dark brown. F lowering in spring and summer. D istinguishing characters: compact perennials, forming rosette; leaves dotted; flowers yellow.