Aerangis bouarensis Chiron, Orchid Rev. 106(1222): 229 (1998).
Epiphytic herb with a short stem (c. 5 cm long and 7-8 mm in diameter), covered with the remains of old leaf bases;, roots numerous, up to 40 cm long, 3-4 mm in diameter, glabrous, the growing tips brownish-pink. Leaves 5-6, alternate, forming a fan. set about 1 cm apart, with a sheathing base 1-1.5 cm long, flat, up to 21 cm long and 5.3-6 cm wide, oblanceolate, the apex slightly bilobed, the lobes almost equal, obtuse, the sinus open, 5-8 mm deep; mid vein faintly visible on the upper surface; colour mid green, slightly reddish on the underside, with small black spots on both surfaces. Inflorescence arising from leaf axils, about 20 cm long, the peduncle 2 mm diameter; rhachis scarcely zigzag, with 4-5 flowers set about 3 cm apart. Pedicel and ovary slender, about 5 cm long; bract blackish, 9-10 x 5-6 mm, linear, obtuse. Flowers starry, c. 7 cm diameter; sepals and petals white, tipped with pink; lip and spur of a uniform chestnut-pink. Dorsal sepal 35-36 x 4 mm, lanceolate-elliptic, acuminate; lateral sepals similar but narrowly linear, acuminate; petals 30 x 5-5 5 mm, narrowly linear, acuminate; lip similar in shape, 36-37 x 5 mm, with 2 folds at the mouth of the spur; spur 19 cm long, 2-3 mm diameter but slightly inflated in the apical quarter, the apex acute, straight, slightly recurved at the tip. Column 12 x 3-4 mm, straight, relatively slender, with a small tooth at the base just above the entrance to the spur.
The plant flowers in July and August. No perfume has been noted at any time of the day. It is grown in a fairly bright, temperate glasshouse, with a constant humidity of 70% or more. It is mounted on a slab of cork: a little moss has developed, keeping the roots constantly moist. It is sprayed even every day in summer, less often in winter.
Cameroon to Central African Rep.
Chiron (1998) In: Orchid Rev. 106(1222): 229; WCSP (2017). WCSP (2017). 'World Checklist of Selected Plant Families. 18.01-2017;
Click on each image to see a larger version.