Aerangis mystacidii Schltr.

Stem woody, up to 4 cm. long, 5 mm. in diameter, bearing numerous greyish roots 2–3 mm. in diameter.. Leaves 4–8, distichous, oblanceolate, oblong-spathulate or shortly obovate, 4–15 cm. long, 1.5–2.5(–4.5) cm. wide, somewhat oblique, base attenuate, apex bilobed, the lobes equal or strongly unequal, acute, obtuse or rounded, somewhat leathery or fleshy in texture, margins entire.. Inflorescences arising below the leaves, horizontal or pendulous, bearing 4–15(–24) flowers; peduncle terete, up to 6 cm. long, gradually thickened towards the rhachis, bearing 1–2 tight sheaths at the base and one broadly ovate sheath halfway along its length; rhachis straight, greenish grey or brownish, 5–25 cm. long, and 3 mm. in diameter; bracts triangular-ovate, subacute, 3–5 mm. long.. Flowers erect or horizontal, white with a pinkish or light brown spur; pedicel with ovary 1–1.5(–2) cm. long.. Dorsal sepal erect or arching forward over the column, oblong, apiculate or acute, 7–13 mm. long, 2–4(–5) mm. wide; lateral sepals oblique, deflexed on either side of the lip, elliptic-oblong, apiculate, 8–14 mm. long, 2.5–4 mm. wide.. Petals nearly always strongly reflexed, oblong, subacute, 6–13 mm. long, 2–4.5 mm. wide.. Lip deflexed, oblong or ovate-oblong, obtuse or apiculate, 7–12 mm. long, 3–4.5 mm. wide.. Spur curving fowards, rarely straight, often somewhat enlarged in the distal half, (4.5–)6–8 cm. long.. Column stout and thick, terete and somewhat narrowed below, 2–4 mm. high; anther-cap rounded, sometimes minutely apiculate; rostellum curved, porrect, pollinia globose; stipes slender; viscidium narrowly elliptic.