生活型

herb

形態特徵

• Plant including inflorescence 3-4 cm tall. Corms whitish, ovoid or nearly globose, < 1 cm across.
• Leaves petiolate, polygonal-ovate or cordate, 3 cm in diameter, acute, cordate at base, green on upper surface, pale green on lower surface, wavy-ruffled along margins, with 7 palmate major veins, leaf emergence only after anthesis; petiole short.
• Peduncle slender, 2.5-3.0 cm tall, with several sheaths, sheaths tubular; pedicel and ovary 4 mm long. Flowers solitary, not resupinate, facing upward, perianth spreading, 1.8 cm across, anthesis only lasting for 1 day and flower pendent thereafter; sepals lightly greenish, lanceolate, 13-14 mm long, 2 mm wide, acute or acuminatex; petals similar to sepals but slightly narrower, 11 mm long, 1.5 mm wide. Lip rhombic, 13 mm long, 8 mm wide, not lobed, both sides embracing column and tube-like, upper part suddenly incurved downward, basal part lightly greenish otherwise whitish, inner surface covered with white hairs, margins in front undulate and fringed, apex acute, disc with 3 longitudinal keels, yellowish. Column white, 6.5 mm long, dilated upward, keeled on dorsal side; anther cucullate; pollinia 4, without viscidium; stigma semiorbicular.

物候

Flowering Season: May to June.

分布

• 台灣 : southern Taiwan: Syhchurngshi and Chechen, Pingtung County.
• 世界 : very widespread from Africa to Australia and varies widely in flower size and lip morphology. In Australia, it is known as the round shield orchid.

參考文獻

• Wei-Min Lin, Tien-Chung Hsu and Tsan-Piao Lin, Taiwania 52(4): 284. 2007.