Piaranthus punctatus (Masson) Schult.

Stems 10-60(-100) mm long, 8-20(-25) mm thick, occasionally ± clavate, green to purplish green, slightly papillate; tubercles with apical deltoid leaf-rudiment 0.5-2.0 mm long, bearing 2 minute stipular glands at base. Pedicel 5-20 mm long, 1.5-2.0 mm thick; sepals 2-4 mm long, 1 mm broad at base. Corolla 17-28 mm diam., campanulate; inside white to pale yellow spotted to transversely banded with red to purple, markings becoming smaller and fading towards base of tube, rarely uniformly pale yellow all over, covered with fine ± spherical to conical-acute papillae (<0.2 mm long); tube 4-7 mm long, 5-9 mm broad at mouth, cupular, circular to pentagonal in outline, corolla not thickened towards mouth; lobes 6-13 mm long, 4-7 mm broad at base, spreading to somewhat reflexed, deltate, acute, with margins recurved except near base, rarely with few ± clavate cilia <1 mm long near base. Corona 3.0-5.5 mm tall, 3.5-5.5 mm broad, yellow; outer lobes ± absent beneath guide-rails, forming rounded to deeply rugose-tuberculate crest ±1 mm broad behind inner lobes to absent (in var. framesii); inner lobes 0.5-2.0 mm long, 0.5-1.0 mm broad (sometimes absent in var. framesii), adpressed to backs of anthers to erect, usually exceeding anthers and sometimes ascending beyond them, narrowly deltoid to linear to oblanceolate, acute to truncate-emarginate, often dorsally channelled and with numerous ridges and tubercles towards rear and crest of outer lobes.