Porpax compacta subsp. compacta.
Description:

Is a much larger plant (often three or four times larger) with yellow flowers whilst subsp. purpurata is almost as large and has purple flowers.
Habitat:
Epiphyte in dwarf montane forest; 1700-2100 m.
Distribution:
Malawi (Nyika Plateau)
References:
Flora of Tropical East Africa: Orchidaceae, Part 2
Images:
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