Schistolobos W. T. Wang.

Herbs, perennial, epipetric or terrestrial, rhizomatous, stemless. Leaves few to many, basal; leaf blade puberulent to woolly or velutinous, base cuneate to cordate. Inflorescences often umbel-like, lax, axillary, 1- to many-flowered cymes; bracts 2, opposite. Calyx actinomorphic, 5-sect from base to deeply 5-lobed; segments equal. Corolla pink to purple, zygomorphic, inside glabrous to sparsely puberulent or glandular puberulent; tube tubular to funnelform, rarely nearly salverform or cylindric, not swollen, sometimes slightly gibbous abaxially, 1.5-4 X longer than limb, 3.5-17 mm in diam.; limb distinctly or indistinctly 2-lipped; adaxial lip 2-lobed, usually distinctly shorter than, rarely nearly as long as abaxial lip; abaxial lip 3-lobed, lobes equal or subequal, apex rounded to acute. Stamens 2, adnate to adaxial side of corolla tube near middle, rarely near corolla base, included; anthers basifixed, free or coherent at apex, thecae parallel, not confluent, dehiscing longitudinally from straight or arcuate slits; connective not projecting; staminodes (1-)3 or absent, adnate to adaxial, lower, or adaxial and abaxial sides of corolla tube. Disc ringlike or cupular. Ovary linear, 1-loculed; placentas 2, parietal, projecting inward, 2-cleft. Stigmas 2, equal, oblate, undivided, or 1, terminal, capitate, undivided or 2-lipped. Capsule straight in relation to pedicel, linear, much longer than calyx, dehiscing loculicidally to base; valves 2, straight, not twisted. Seeds unappendaged.

Ten species: China, Japan; nine species in China.