小叶石豆兰 xiao ye shi dou lan

Bulbophyllum tokioi f. alboviride Fukuyama.

Rhizome creeping, ca. 0.5 mm in diam., with tubular sheaths. Pseudobulb absent. Leaves small, well spaced, sessile; leaf blade elliptic or elliptic-orbicular, 5-6 × 3-4.5 mm, fleshy, with a few very small membranous sheaths at base, apex rounded and mucronate. Scapes 1 or 2, axillary, erect, ca. 10 mm; raceme 2-flowered; peduncle slender; floral bracts elliptic, shorter than pedicel and ovary. Pedicel and ovary ca. 1 mm. Flowers yellowish white, tinged with purple on lip. Sepals membranous, glabrous, 3-veined; dorsal sepal oblong, ca. 2.5 × 1 mm, apex obtuse; lateral sepals obliquely ovate-triangular, 2.6-4 × 1.5-2 mm, apex acute. Petals oblong, 1.3-2.4 × 0.6-1 mm, 1-veined, entire, acute; lip ovate-triangular, 1.5-2.4 × ca. 1 mm, 3-veined, base attached to end of column foot by an immobile joint, margin entire, apex obtuse-rounded. Column 0.7-1 mm, base with a foot 1-2 mm; stelidia deltoid, very small. Fl. Apr.

● Tree trunks in dense forests; 600-800 m. C and N Taiwan.