Schismatoglottis luzonensis Engl.

Very small to small rheophytic herb. Shoots pleionanthic. Petiole 8–20 cm long, sheathing in the lower ⅓–½; blade narrowly lanceolate to elliptic, rarely oblong ovate, 7–17 cm long × 1.2–4 cm wide, the apex narrowly acute to shortly acuminate, the base tapering to (rarely) obtuse, asymmetric; midrib with 2–4 rather distant primary lateral veins on each side, diverging at c. 45–60° and running distally to the margins. Inflorescence solitary or if two or three together then these interspersed with foliage leaves; peduncle c. ⅓ the length of the petioles. Spathe 2–3 cm long, constricted at c. ⅓ from the base; limb turbinate, distally acuminate, caducous. Spadix sessile, somewhat shorter than the spathe; female zone 7 mm long, adnate to the spathe in the basal ½; ovaries ovoid, c. 0.5 mm diam.; stigma sessile, globose; sterile interstice ill-defined, the spadix axis bearing either sparse pistils or stamens at level of spathe constriction, c. 1.5 mm diam.; male zone otherwise obconic, c. 7 mm long, to 3 mm diam. at apex; appendix conical to hemispherical, c. 3 mm long, occasionally to 5.5 mm. Fruiting spathe c. 1 cm long, asymmetric cup-shaped.