Satyrium princeps Bolus

Plants robust, (280-) 340-690 (-860) mm tall; leaves 2, very broadly ovate-elliptic, obtuse, pressed flat onto the ground, with abrupt transition to the sheaths above; sheaths 7-9, dry and membranous at anthesis. Inflorescences dense, stout, (8-) 13-33 (-44)-flowered; bracts gradually becoming deflexed, 1.4-2.8 times the length of the 8-17 mm long ovary, margins glabrous. Flowers rose pink to carmine red. Sepals and petals fused for Vs of their length to the lip; median sepal oblong, obtuse, 11-14 mm long; lateral sepals elliptic acute; petals lanceolate, acuminate, serrulate, margins crisped. Lip obovate, apical flap serrulate and crisped, partly reflexed; spurs (14-) 16-20 (-22) mm long. Viscidia of the pollinia deltoid-acuminate; stigma flap subquadrate, truncate to emarginate, 3-4 mm long; rostellum 4 mm long, unlobed with a narrow apex.