Cynorkis fastigiata var. ambatensis Hermans, Orchids Madagascar, ed. 2: 289 (2007).
Description:

Differing from the preceding forms by the glabrous pedicel and the median lobe of the rostellum entire; flowers smaller (sepals and petals 4 mm long, labellum 5 mm long; spur 9 mm long).
Habitat:
Distribution:

N. Madagascar