Phreatia morii Hayata, Icon. Pl. Formosan. 4: 58, f. 25. 1914; Liu & Su, Fl. Taiwan 5: 1088. 1978.
Pseudobulbs closely tufted, ovoid-globose, often covered with membranaceous scales, 1.5-2 cm in diam., usually 2-leaved or rarely 3-leaved at apex. Leaves linear-oblong, 8-15 cm long, 2-2.5 cm wide, apex acute, base cuneate, articulated with convolute sheaths; sheaths ca. 4 cm long. Peduncle arising form base of pseudobulb, slender, 10-30 cm long, with 4-6 well-spaced scales below; rachis ca. 10 cm long; bracts oblong, 4.5 mm long; pedicel and ovary 3.5 mm long. Flowers more than 20, white, not opening widely; dorsal sepal broadly ovate to ovate-elliptic, concave, 2.8 mm long, 2.3 mm wide, rounded at apex; lateral sepals obliquely ovate, 3 mm long, 2.5 mm wide, apex acute, base broad; petals ovate or triangularly ovate, 2.5 mm long, 1.8 mm wide, acute; lip erect on foot of column, shortly stipitate, 2.5 mm long, 1.5 mm wide, with globose sac at base, widened into broad limb, limb ovate, concave, reflexed at apex, minutely hairy or hispid; column, ca. 0.5 mm tall, foot ca. 2 mm long; anther cordate, 0.8-1 mm long; pollinia ovoid-clavate, connected in 2 groups of 4 through slender caudicle.
TAIPEI: Wulai, Su 1491*. HUALIEN: Lintien, Lin 96. TAITUNG: Chingshuiying, Mori s. n. 1910; Hsinkong, Su & Chen 7867.
Endemic, forests below 1,500 m, throughout.