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. longipetala } Poll, (pseudo-cordigera, Mor.); spike 

 elongated (2-4 in.), bracts very large, coloured, sepals 

 acuminate, lip 2-lobed, lanceolate, pubescent, very long, 

 stem 1215 i n - 1 Ticino, Pyrenees. vS. Lingua, L. ; spike 

 few- (2-4) flowered, bracts lanceolate, shorter than the 

 flowers, sepals lanceolate, lip 3-lobed, glabrous, stem 

 4- 1 2 in. ; Pyrenees. 



7. NlGRITELLA, 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. 



N. angustifolia, Rich, (nigra, 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 linear; 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 (Habenaria 

 conopsea, Benth.) ; fragrant, spike slender, elongated, 

 flowers pink, spur very long and slender, iJ-2 times as 



