Disperis parvifolia Schltr.

Herb, 4.5–11 cm. tall, arising from a globose hairy tuber ± 7 mm. in diameter.. Leaves 2, alternate, much reduced, scarcely more than scale leaves, sheathing at the base, ovate, rounded or elliptic, 2–9 mm. long, 2–5 mm. wide, rounded to shortly acuminate at the apex, rounded into the sheath at the base.. Flowers solitary, yellowish (fide Stolz) but probably pink in W. Africa; bract leaf-like, 6 mm. long, 2.5 mm. wide, shortly acuminate.. Intermediate sepal forming a slightly curved conical spur, 6.5 mm. long, to the mouth of which the petals are joined; lateral sepals obliquely elliptic or rhomboid, 2.5–4.5 mm. long, 1.3–2.2 mm. wide, free, bearing small very obtuse sacs.. Petals obliquely oblong or somewhat B-shaped, 3.5–4 mm. long, 2 mm. wide.. Lip ± 4–4.5 mm. long (including appendage), situated in the spur, the narrow basal claw with a short reflexed linear limb 0.6 mm. long and bearing at the point of reflection a linear appendage 1.5 mm. long, enlarged at the apex like the condyle of a bone, hairy at extreme tip.. Fig. 39/10, p. 220.