Piaranthus comptus N.E.Br.

Stems 10-50 mm long, 10-22 mm thick, dark grey-green, subglobose, somewhat papillate; tubercles with apical deltoid leaf-rudiment ±1 mm long. Pedicel 5-15 mm long, 1-2 mm thick. Corolla 14-17(-24) mm diam., rotate; inside white to cream (light brown) usually boldly spotted with red to red-brown (more rarely transversely banded with these darker colours), covered with slightly swollen acute papillae 0.4-1.0 mm long; tube ± absent but sometimes shallowly plate-like with slight annulus-like thickening of corolla at base of lobes; lobes 6-10 mm long, 3-5 mm broad at base, spreading, lanceolate, acute, margins somewhat recurved, with vibratile clavate cilia up to 1 mm long near base. Corona 2.6-3.2 mm tall, 3.5-4.8 mm broad, yellow with upper surface reddish; outer lobes forming narrow platform beneath guide-rails and tuberculate sometimes rounded crest 0.8-1.5 mm wide behind inner lobes; inner lobes 1.0-1.5 mm long, ±0.6 mm broad, adpressed to backs of anthers and often slightly exceeding them, linear to subulate, acute to emarginate.