Pseudorchis Séguier, 1754

D. M. Moore (ed.), 1980, CCIII Orchidaceae, Flora Europaea, Vol 5: Alismataceae to Orchidaceae, Camebridge: Cambridge University Press, pp. 325-350 : 332

16. Pseudorchis Séguier 2

(Leucorchis E. H. F. Meyer)

Like Gymnadenia but with outer and inner perianth-segments more or less connivent to form a galea. Spur short.

Tubers divided to base; leaves 4-6; bracts 3-veined; spur FT as long as ovary, cylindrical, obtuse 1. albida

Tubers divided to about £ way to base; leaves 3-4; bracts 1 -veined; spur c. I as long as ovary, filiform, acute 2. frivaldii