Tritoniopsis bicolor J.C.Manning & Goldblatt

Plants 200-400(-600) mm high. Corm 20-30 mm diam.; tunics of densely matted brown fibres, with well-developed collar. Stem moderately slender to robust, curved outward at ground level, then suberect or weakly inclined, unbranched, 2.5-4.0 mm diam. Basal leaves (4)5 to 7, green at flowering or outermost drying, blades narrowly lanceolate, acuminate, with 1 or 2(3) veins, (85-)100-150 x (5-)6-10 mm, contracted abruptly into semiterete pseudopetiole 30-35 mm long; cauline leaves 1 or 2, lowermost concealed by corm fibres, scale-like. Spike densely 20-to 35-flowered, 80-100(-150) mm long; bracts green at base, dry and brown above, leathery, oblong, outer 7-10 mm long, obtuse or acute, inner slightly longer. Flowers zygomorphic, yellow with lower 3 tepals flushed maroon in basal half and with darker median streak, strongly acrid or musty scented; perianth tube 2-5 mm long; tepals unequal, dorsal slightly larger, suberect and recurved distally, crisped or undulate, base of lower tepals and mouth of tube minutely papillate, dorsal tepal narrowly oblanceolate, 14-16 x 3-4 mm, obtuse, upper laterals oblanceolate-to obovate-spathulate, 9-13 x 2-4 mm, obtuse, strongly clawed in basal 2-4 mm, lower 3 tepals joined for 1.0-1.5 mm, oblong-spathulate, 9-10 x 2.0-4.5 mm, truncate, with or without short claw up to 1.5 mm long. Filaments arcuate, later erect, 6-7 mm long, base of median filament minutely papillate; anthers 3 mm long, yellow, with short apiculus 0.5 mm long. Style ± 9 mm long, dividing opposite anther bases, branches 1.0-1.5 mm long. Capsules much inflated, ovoid to broadly ellipsoid, 23-28 x 15-20 mm. Seeds 10-12 x 10 mm, winged on angles.