138 THE FLORA OF THE ALPS 
6. SERAPIAS, L. 
Sepals and petals connivent into a hood ; flowers large ; 
lip 3-lobed, not spurred, lateral lobes ascending; stigma 
prolonged into a beak. Not alpine. 
S. longtpetala, Poll. (pseudo-cordigera, Mor.); spike 
elongated (2-4 in.), bracts very large, coloured, sepals 
acuminate, lip 2-lobed, lanceolate, pubescent, very long, 
stem 12-15 in.; Ticino, Pyrenees. S. Lingua, L.; spike 
few- (2-4) flowered, bracts lanceolate, shorter than the 
flowers, sepals lanceolate, lip 3-lobed, glabrous, stem 
4-12 in.; Pyrenees. 
7, NIGRITELLA, Rich. 
Flowers small, fragrant, very dark purple; sepals and 
petals nearly alike, spreading; lip undivided, turned up- 
wards, with a short saccate spur; tubers palmate. 
NV. angustifolia, Rich. (nzgra, Rchb.); flowers black- 
purple, rarely pink, spur about a quarter as long as ovary, 
lip scarcely half as broad as long, spike short, dense, 
stem 3-6 in., leaves lincar; alpine pastures, frequent. 
Several other species are described, which appear to be 
hybrids with different species of Gymnadenia. 
8. GYMNADENIA, Br. 
Sepals spreading; lip 3-lobed, decurved, with a long 
spur; stigma large, tumid, 2-lobed ; tubers 2, palmate. 
G. conopsea, Br., Sweet-scented Orchis (/labenaria 
conopsea, Benth.); fragrant, spike slender, elongated, 
flowers pink, spur very long and slender, 14-2 times as 
