Primulina flexusa

Description. Herbs perennial, acaulescent. Leaves basal, 8 - 12, opposite, petiolate; petiole compressed, gradually broadened from the base to the upper, densely pilose, 5 - 13 x 1.5 - 3.5 mm; leaf blade ovate to broadly ovate, abaxial surface green to dark green, adaxial surface brownish-green to brownish-purple; 1.6 - 2.0 x 1.3 - 1.8 cm, pubescent and pilose on adaxial surface, puberulent on abaxial surface, base shallowly cordate to slightly cuneate, margin entire and ciliate, apex obtuse to nearly rounded; lateral veins ca. 3 on each side of the midrib, inconspicuous on adaxial surface, prominent on the abaxial surface. Cymes 2 - 4, 1 - 4 - flowered; peduncle 1.5 - 2.4 cm long, ca. 1 mm in diameter, erect pubescent; bracts 2, opposite, oblong, ca. 3.8 x 0.7 mm, adaxially green and nearly glabrous, abaxially brownish-green to brownish-purple, densely pilose, the pilose hairs 0.8 - 1.2 mm long, margin entire, apex acute, bracteole ca. 2.4 x 0.5 mm, color and indumentum same as bracts. Pedicel 6.5 - 8 mm long, ca. 0.9 mm in diameter, puberulent. Calyx 5 - parted from the base; segments equal, pale brown to brown, lanceolate, 4 - 5 x 0.7 - 0.9 mm, outside pale brown to greenish-brown, densely pubescent, inside greenish-brown, glabrous, margin entire, apex acute. Corolla 21 - 25 mm long, pale purple to purple, throat with two distinctly dark purple stripes respectively between each pair of abaxial lip lobes, outside covered with extremely short glandular-puberulent hairs, inside nearly glabrous; corolla tube infundibuliform, slightly curved downwards at base (ca. 4 mm from the base), then gradually bent forwards, 16 - 19 mm long, ca. 6 mm in diameter at the mouth, ca. 2.5 mm in diameter at the base; limb distinctly 2 - lipped, adaxial lip 2 - parted over 2 / 3 from the top of the adaxial lip, lobes nearly equal, broadly obovate, ca. 5 x 4 mm; abaxial lip 3 - parted over 4 / 5 from the top of the abaxial lip, lobes slightly obliquely obovate, 7.5 - 8 x 3.9 - 5 mm. Stamens 2, adnate to ca 2.5 mm above the corolla base; anthers pale yellowish-brown, elliptic, ca. 1.5 x 1.0 mm, fused by entire adaxial surfaces; filaments linear, straight, ca. 3 mm long, white, glabrous; staminodes 3, adnate to ca. 3 mm above the corolla tube base, lateral ones ca. 3.5 mm long, the middle one ca. 0.7 mm long. Disc yellowish-green, annular, margin entire or sometimes slightly erose, ca. 0.4 mm high. Pistil ca. 5 mm long; ovary brownish-red, ovoid, ca. 1.4 mm long, ca. 0.9 mm in diameter, densely puberulent and glandular-puberulent; style white, 2.2 - 2.5 mm long, ca. 0.2 mm in diameter, sparsely glandular-puberulent. Stigma 1, translucent to white, its upper lobe lacking, lower lobe obtrapeziform, slightly 2 - parted at apex, ca. 1 mm long, ca. 0.75 mm wide. Capsule ovoid, ca. 6.5 mm long, ca. 2.2 mm in diameter, densely puberulent.