Disperis Johnstonii Group
Description:
Glabrous herbs. Leaves normally alternate. Tepal hood shallow or deep, lateral sepals frequently joined at base or more extensively; lip appendage mostly with erect, ascending or horizontally reflexed processes, usually pubescent throughout, blade normally with callus, with pronounced and elongate stalk, rarely stalk short and insignificant. Rostellum arms straight, linearspathulate, erect or slightly twisted outwards.
Distribution:
Subtropical and tropical Africa but ranging into Madagascar, the Indian Ocean islands and south-east Asia.
Species:
World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/monocots/ accessed 15/09/2019