2n = 66

2n = 66

Plant at flower to c. 40-50 cm tall. Leaf c. 5-15 mm wide, channelled and more or less keeled, forming rather well-defined V in T.S. Flowers few, usually 1-6. Perianth c. 15 mm long, colour between pink and blue, without stripes or spots. Sepals, petals and labellum subsimilar, elliptic, sepals more acute. Column-arm terete or plano-convex in T.S. with abundant cilia from sides, back and top; cilia usually very pale yellow, mostly standing erect and above post-anther lobe; post-anther lobe tall, overtopping anther at least at sides, erect, squarely to obliquely truncate, sometimes forming a deep cleft at back, usually dark red towards top, margin usually yellowish, more or less denticulate but not thickened or involute, often ending in front in two small, more or less inturned horns.

Folium lineare, canaliculatum. plus minusve carinatum. Inflorescentia pauciflora. Perianthium purpurascens, nee striatum nee maculatum. Sepala, petala labelleumque elliptica, acuta. Columnae brachia teretia, ciliis numerosis sulphureis vel eremeis ornata; lobus post antheram ascendens erectus, antheram superans, recte vel oblique truncatus, laevis, rubescens, margine luteo plus minusve denticulato non involute.

Plant at fl. to c. 40 cm. tall. Lf 7–15 mm. wide, channelled and ± keeled, forming rather well-defined V in T.S. Infl. to c. 6-fld. Per. c. 15 mm. long, between pink and blue, without stripes or spots. Sepals, petals and labellum subsimilar, elliptic, sepals more acute. Column-arms terete to plano-convex in T.S.; cilia ∞, us. very pale yellow, arising from sides, back and top of arm, mostly standing erect and above post-anther lobe; post-anther lobe tall, overtopping anther at least at sides, erect, truncate sts quite obliquely forming a deep cleft at back, us. dark red towards top, margin ± yellow, ± denticulate but not thickened or involute, often ending in front in two sharp points.