ORCHIDEiE 141 



powdery; stem covered with brown sheathing scales. 

 Not alpine. 



N. nidus-avis, L., Bird's-nest Orchis; stem thick, 

 flowers about ^ in., grey-brown, root a mass of succulent 

 stout interlacing fibres; woods; Switzerland, Pyrenees, 

 local. 



15. LiSTERA, Br. 



Flowers small, green ; sepals and petals spreading ; lip 

 deflexed, not spurred ; lateral lobes o or very small ; 

 pollen-masses 2, powdery ; rostellum elongated ; leaves 2, 

 opposite. 



L. ovata, Br., Twayblade; stem \-\\ ft., bearing two 

 ovate leaves, flowers yellowish-green, lip linear, bifid; 

 bushy places, frequent. L. cordata, Br.; stem 3-4 in., 

 slender, bearing two cordate leaves, flowers yellowish- 

 green, lip 3-fid, with two small linear lobes; mountain 

 woods, rare ; Switzerland, Jura, Vosges, Pyrenees. 



16. GOODYERA, Br. 



Flowers small, in spiral spikes; lateral sepals deflexed; 

 lip decurved, saccate at the base ; pollen-masses 2, cohe- 

 rent ; rostellum beaked ; root-stock creeping. 



G. refens, Br. ; flowers white, few, leaves ovate, net- 

 veined, the lower ones stalked, root-stock branched ; pine- 

 forests, rare. 



17. EpiPOGUM, Gmel. 



Leafless saprophytes ; sepals and petals spreading ; 

 Up 3-lobed, with a short stout spur ; rostellum o ; pollen 

 granular. Not alpine. 



E. Gmelini, Rich, {aphyllum, Sw.); flowers few (3-5), 



