耳唇对叶兰 er chun dui ye lan

Listera pseudonipponica Fukuyama, Bot. Mag. (Tokyo) 49: 665. 1935.

Plants autotrophic, ca. 20 cm tall. Stem slender, with tubular sheaths at base. Leaves 2, opposite, borne at ca. middle of plant, ovate-suborbicular or nearly reniform-suborbicular, 2-2.5 × 3-3.5 cm, base subcordate, apex rounded and with caudate tip. Peduncle ca. 6 cm, pubescent; rachis 3-4 cm, pubescent, laxly 6-8-flowered; floral bracts ovate-lanceolate, 1-3 mm, apex subacute. Flowers spreading, resupinate; pedicel and ovary 6-8 mm, glabrous. Dorsal sepal linear-oblanceolate, 3.2-3.5 × 0.7-1 mm, 1-veined, base narrowed, apex slightly obtuse; lateral sepals linear-oblong, 3.5-3.7 × ca. 0.7 mm, 1-veined, apex slightly obtuse. Petals linear-oblong, 3.5-3.7 × 0.8-1 mm, 1-veined, apex obtuse; lip subobovate or obtriangular, 5-6 mm, narrowly clawed at base, dilated apical portion obcordate, apex deeply 2-lobed; lobes diverging at an acute angle, oblong, oblique, ca. 2.5 × 4 mm, margins entire or minutely denticulate; sinus with a tooth between lobes; claw with a pair of oblanceolate auricles ca. 1.7 mm at base. Column erect, ca. 2.5 mm; anther ca. 0.7 mm; rostellum broadly ovate. Fl. unknown.

● Forests. C Taiwan.