生活型

herb

形態特徵

• Rhizomes creeping, terete, 1.5 mm in diam. Pseudobulbs close or to 1 cm apart, ovoid-conic, often sulcate and rugose, 1-1.5 cm long, 8-10 mm wide.
• Leaves subsessile, linear-oblong, or oblong, thick coriaceous, 4-6 cm long, 1-1.5 cm wide, apex obtuse or sometimes very shortly 2- lobed, base often cuneate.
• Scapes from base of pseudobulb, yellowish, 7-10 cm long, less than 1 mm in diam., straight or more or less flexuous, lower part with 2 remotely arranged scales; scales sheath-like, ca. 5 mm long; bracts lanceolate, 5 mm long, acuminate at apex; pedicel with ovary 7- 10 mm long. Flowers ca. 10, umbellate, pale yellow with yellow veins, or golden yellow with greenish veins; dorsal sepal concave, ovate, 5-8 mm long, 2.5-3 mm wide, 5-nerved, acuminate at apex, more or less contracted at base, ciliate; lateral sepals free or slightly connate towards base, linear-lanceolate, 2-5-4 cm long, 3-4 mm wide near base, acuminate at apex, oblique at base, entire, incurved; petals obliquely ovate, 4-6 mm long, 2.5 mm wide, 3-nerved, acuminate at apex, slightly contracted at base, ciliate; lip articulated with column foot, yellowish above, pale or nearly white below, thickly horn-like, 2.5-2 mm long, recurved, minutely pubescent or nearly glabrous; column white, semiterete, 2 mm long, apex with 2 slender stylids ca. 1 mm long, base developed into a foot ca. 2 mm long; anther operculate, 2-celled, base minutely pectinate-ciliate; pollinia 4, unequal, connate in 2 equal pairs.

分布

• 台灣 : in forest at ca. 1,000 m in the center and south.
• 世界 : Southern China and Indochina (Vietnam and Laos).

引證標本

HSINCHU: Litungshan, Su 230. TAICHUNG: Shihyuen, Segawa s. n. May 1972. NANTOU: Shuishetashan, Su 180; Huishun Expt. Forest, Su 8241. KAOHSIUNG: Dona, Su & al 7767, 7782. HUALIEN: Lakulakuchi, Su & Hsu 8293.

參考文獻

• SU, Horng-Jye, Flora of Taiwan, second edition 5: 771. 2000.  (Fl. Taiwan 2nd edit.)