3. Epigeneium tsangianum Ormerod, Taiwania. 49: 97. 2004.
广西厚唇兰 guang xi hou chun lan
Rhizome terete, 15-26 cm, 1-1.5 mm in diam., occasionally branching. Pseudobulbs borne 2-10 mm apart, prostrate, subcylindric-fusiform, 10-15 × 3-5 mm, apex raised, mostly covered by a red-brown drying sheath, 1-leaved. Leaf blade erect, oblong-elliptic, 2.8-4.6 × 1-1.4 cm, stiffly leathery, entire to shortly and obtusely unequally bilobulate; petiole 2-4 mm. Inflorescence 1-flowered; peduncle 11-13.5 mm. Flowers unscented, dull purple to brown; pedicel and ovary 18.5-21 mm. Dorsal sepal ovate, ca. 8 × 5 mm, 7-veined, acute; lateral sepals obliquely ovate-elliptic, ca. 15 × 9 mm, 7-veined, acute; mentum ca. 9 mm. Petals oblong-ligulate, ca. 9 mm, ca. 3.5 mm wide at base, ca. 2.5 mm wide above, 3-veined, basally dilated, apex acute; lip ca. 19 × 10 mm, 3-lobed; hypochile obcordate-cuneate, with 2 apical convergent, subdiscoid fleshy calli; lateral lobes short, ca. 3 mm wide, truncate; epichile broadly cordate-trapeziform, ca. 9 × 10 mm, apex deeply emarginate-bilobulate. Column ca. 3 mm, foot ca. 14.5 mm. Fl. Nov.
● Swampy thickets. Guangxi.