var. grandiflora Verde,
in K.B. 22: 99 (1968). Type: Tanganyika, Iringa District, Mt. Image, Polhill & Paulo 1640 (K, holo.!)
Flowers much larger with coarser spur. Total length of combined intermediate sepal and petals (2'3-)2-7-3 cm.; lateral sepals 1-4 cm. long, 9 mm. wide.
Tanganyika. N. Mbeya Range, Mar. 1960, Kerfoot 1645!; Iringa District: 80km. NE. of Iringa, Mt. Image, Mar. 1962, Polhill & Paulo 1640!
Distk. T7; not known elsewhere
Hab. Wet rocks and logs in stream valleys in upland mist-forest; 2160-2550 m.