生活型

herb

形態特徵

• Plants suberect or pendulous, about 15-50 cm long. Stems nearly tufted, frequently branching, with many nodes, internodes terete, clavate or cylindrical, 1-4 cm long, 2-5 mm in diam., branches narrowed at base, slightly dilated upwards, terminal internode enlarged, forming pseudobulb. Pseudobulbs greenish, lustrous, flattened, elongate fusiform, 3-6 cm long, 1-1.8 cm wide, initially covered by membranaceous sheaths.
• Leaves, articulate, oblong, ovate-oblong or lanceolate, 4-10 cm long, 1.5-3 cm wide, acute at apex, obtuse at base, coriaceous, rigid, lower surface more or less decorated with rusty dots toward base.
• Inflorescence terminal on pseudobulb, near abaxial side of leaf, usually with one flower subtended by a series of bracts; bracts scarious, ovate-lanceolate, 3-5 mm long, acute; pedicel and ovary 8-12 mm long. Flowers not widely opening, nearly actinomorphic, white or pale greenish white; sepals ovate, 4-6 mm long, 2-3.3 mm wide, acute, 5-nerved, slightly keeled and rusty punctate outside; petals rhombic-ovate or sometimes ovate-lanceolate, 4-5 mm long, 2-3 mm wide, acute, 3-5-nerved; lip similar to petals, rhombic-ovate or elongate ovate, 4-4.5 mm long, 2-2.5 mm wide, disc without any keel or appendage; column inconspicuous, nearly reduced, about 1 mm tall, consisting of 3 triangular acute lobes surrounding anther; anther operculate, ovoid, 1.5 mm long, 2-celled, with truncate and denticulate front margin; pollinia, ellipsoid to cylindrical, 1.2 mm long.
• Capsules fusiform, about 2 cm long.

分布

• 台灣 : broadleaved forests up to 1,000 m eastern coasts of Taiwan.

引證標本

HUALIEN: Mystery Valley, Su 9194; Long-spring Temple, Chen s. n. 28 Sep 1979; Taroko, Lin 457.