Benthamia herminioides subsp. intermedia H.Perrier, Bull. Soc. Bot. France 81: 37 (1934).
Description:

Plants with the leaves of the two proceeding ssps. remaining green when dried; flowers smaller (2 mm without the pedicel), lateral sepals two-thirds the length of the median; petals shorter than the median sepal; lateral lobes of the labellum obtuse and shorter, half the length of the median; rostellum with its median tooth narrow and obtuse; pedicel longer (4 mm ), much more arched.
Habitat:

In forests with lichens, from 2000 m alt. flowering' April
Distribution:

N. Madagascar