subsp. bifolia Verde,

in K.B. 22: 96, fig. 2 (1968). Typo: Tanganyika, E. Usambara Mts., between Amani and Monga, Verdcourt 213 (EA, holo.!, K, MO, PRE, iso,!)

Stems bearing 2 distinct opposite or subopposite leaves.

Tanganyika. Lushoto District: E. Usambara Mts., between Amani and Monga, May 1950, Verdcourt 213! & Pimbi Hill, May 1943, Greenway 6682! & between Ngua and Magunga Estate, June 1953, Drummond & Hemsley 3028!

Distr. T3; not known elsewhere

Hab. On rotting leaves covering rocks or on forest floor in dense rain-forest; 750-900 m. Note. The claw in this subspecies is 4-5 mm. long.