3. Hetaeria youngsayei Ormerod, Oasis Suppl. 3: 7. 2004.
香港翻唇兰 xiang gang fan chun lan
Hetaeria shiuyingiana L. Li & F. W. Xing.
Plants 20-40 cm tall. Stem slender, 2-5-leaved. Leaves cauline or crowded at stem apex, broadly ovate, oblique, 3-8 × 2-4 cm, 3-veined, base obliquely obtuse, apex shortly acuminate; petiole-like base and sheath 2-3 cm. Inflorescence 20-22 cm, slender, villous; sterile bracts 3 or 4, pinkish brown, lanceolate, glabrous; rachis subdensely 14-20-flowered, 7-9 cm, glandular pubescent; floral bracts lanceolate, 7-9 mm, shorter than ovary, puberulent, apex acuminate. Flowers half opening; ovary and pedicel held close to rachis, olive-green, subcylindric, not twisted, 8-10 mm, densely glandular pubescent. Sepals pink, tinged olive-green at base, ovate, outer surface densely glandular pubescent, 3-veined, apex acute; dorsal sepal 5-7 × 2-4 mm, apex recurved; lateral sepals oblique, 5-6 × ca. 2 mm. Petals spreading, white, obliquely obovate, 4-6 × 2.2-3 mm, 1-veined, apex obtuse; lip broadly ovate-cymbiform, 4.5-5 mm, fleshy, 2-partite; hypochile yellowish, concave, ca. 3 × 2.5 mm, containing several warty, 2- or 3-lobed calli, 5-veined, distal margin slightly involute; epichile white, 1-1.5 mm, attenuate, margin involute, apex acuminate-apiculate. Column ca. 2 mm, stout; wings broad, oblong flaps; rostellum arms ca. 1 mm. Fl. Mar-Apr.
Forests, ravines; 600-900 m. Hainan, Hong Kong [Thailand].
This taxon has been confused with Hetaeria nitida Ridley (J. Linn. Soc., Bot. 32: 404. 1896). See Ormerod (Oasis Suppl. 3: 7. 2004) and Li and Xing (Novon 19: 187-190. 2009) for further discussion.