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FOC | Family List | FOC Vol. 25 | Orchidaceae | Ypsilorchis

1. Ypsilorchis fissipetala (Finet) Z. J. Liu, S. C. Chen & L. J. Chen, J., Syst. Evol. 46: 623. 2008.

丫瓣兰 ya ban lan

Liparis fissipetala Finet, Bull. Soc. Bot. France 55: 340. 1908; Platystyliparis fissipetala (Finet) Margońska.

Pseudobulbs 8-10 × 4-5 mm, upper part with 3 or 4 leaves (1 or 2 terminal). Leaf blade narrowly obovate or oblanceolate-oblong, 0.8-1.6 × ca. 0.3 cm, base contracted into a petiole 3-5 cm, articulate, margin crisped, apex rounded and mucronate, rarely shortly cuspidate. Scape 5-7 cm, nearly wingless, with 1-3 sterile bracts; raceme sparsely several to 10-flowered; floral bracts green, ovate-lanceolate, 2-2.5 mm; pedicel and ovary 4-5 mm. Flowers yellow. Dorsal sepal oblong-lanceolate, 2.5-3.5 mm, 1-veined; lateral sepals suboblong or ovate-oblong, fused from base to near or above middle forming a synsepal; synsepal suborbicular, 2.5-3 mm, bifid at apex. Petals narrowly linear, 3-4 mm, apex furcate-bilobed; lobes 0.7-1 mm; lip 1.5-2 mm, composed of limb and claw; limb oblong, base with auricles on both sides, apex emarginate; claw broadly linear, 0.4-0.5 mm, with a somewhat crescent-shaped callus along its apical margin bordering base of limb. Column erect, ca. 1.5 mm, upper part with obtuse-triangular wings on both sides. Capsule globose or broadly ellipsoid, 3-4 mm; fruiting pedicel 3-4 mm. Fl. Sep-Nov.

● On slightly sunny limestone rocks in evergreen broad-leaved forests, on trees in forests; 1200-1600 m. Chongqing (Chengkou), SE Yunnan (Malipo).


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