Polystachya simplex Rendle

simplex: undivided, entire

Pendulous epiphyte or occasional lithophyte. The new, slender pseudobulbs arise from the centre of the previous growth, forming long, pendent chains. Leaves 3-4, elliptic-oblong or oblanceolate, glossy green, often with purple veining beneath, 5-15 cm long, arising from the apex of the new growth. Inflorescence terminal, mostly unbranched, fairly densely up to 15-flowered. Flowers green, tinged with brown or reddish-purple, pubescent on the outside, lip pale yellow with a darker centre line.

DRC, Uganda, kenya, Tanzania, Malawi, Mozambique and Zimbabwe