ORCHIDE 137 
Spider-Orchis; sepals yellow-green inside, lip broad, 
convex, usually lobed, lateral petals oblong, nearly 
glabrous; open hill-sides, rare. O. fuctfera, Sm.; re- 
sembling avanzfera, but sepals pink, lateral petals downy 
within, lip usually not lobed; open hill-sides, rare. 
3. CHAMORCHIS, L. 
Sepals and petals connivent, forming a hood; lip 
3-lobed, not spurred, lobes entire, but with a blunt tooth 
on each side of the lip; tubers 2-3, undivided. 
C. alpina, Rich. (Ophrys alpina, L.); flowers small, 
greenish-yellow, in a lax spike, stem about 4 in., leaves 
linear, as long as the stem; alpine pastures, local. 
4. ACERAS, Br. 
Sepals and petals connivent into a hood; lip elongated, 
4-lobed, not spurred; pollen-masses falling forwards. 
Not alpine. 
A. anthropophora, Br., Man-Orchis; flowers small, 
green, lip with two lateral and two terminal lobes; dry 
pastures, chiefly calcareous, local. 
5. HERMINIUM, Br. 
Sepals and petals incurved; flowers small, lip 3-lobed, 
not spurred, leaves usually two. 
Hf. Monorchis, Br., Musk-Orchis; stem 4-6 in., flowers 
very small, green, in a slender dense spike, fragrant at 
night, leaves narrow, 2 radical and 1 stem-leaf; alpine 
pastures, chiefly calcareous, local. 
