注：名称已修订，正名是：反唇兰 Platanthera calceoliforme

Smithorchis calceoliformis (W. W. Smith) Tang & F. T. Wang, Bull. Fan Mem. Inst. Biol. Bot. 7: 140. 1936.反唇兰 fan chun lan

Herminium calceoliforme W. W. Smith, Notes Roy. Bot. Gard. Edinburgh 13: 211. 1921.

Plants 5-10 cm tall. Stem with 2 or 3 tubular sheaths at base. Leaves spreading, narrowly lanceolate, ca. 20 × 4 mm, base contracted into an amplexicaul sheath, apex acute or acuminate. Inflorescence 7-flowered; rachis ca. 1.5 cm; floral bracts lanceolate, slightly longer than ovary, margin denticulate. Flowers fragrant, deep yellow; ovary and pedicel ca. 3 mm. Sepals similar, membranous, 1-veined; dorsal sepal obovate, ca. 1 × 0.7 mm, apex obtuse; lateral sepals spreading, oblong-ovate, oblique, ca. 1.5 × 1 mm, apex subacute. Petals spreading, rhombic-ovate, smaller than sepals, slightly fleshy, 1-veined, apex obtuse; lip ca. 1.5 mm, fleshy, much thicker than sepals, saccate-spurred at base; rostellum and stigma undifferentiated.

● Open alpine grasslands; 3200-4000 m. NW Yunnan.