INTRODUCTION. 1 5 



14. Aplectrum. Perianth not gibbous nor spurred at base. 

 A green autumnal leaf. Lip free from the base of column. 

 Otherwise the flowers and scape as in Corallorhiza. A solid 

 bulb or corm. A loose raceme of several flowers. 



A. hyanhle. 



II. Anthers two, or very rarely three. 



Tribe IV. CYPRIPEDIE/E. The stamen which bears the 

 anther in the rest of the order here usually forms a petal- like, 

 sterile appendage to the column. Pollen not in masses : no 

 stalks nor gland. 



15. Cypripedium. Lip an inflated sac. Anthers 2, one on 

 each side of the column. Sepals and petals spreading ; the 

 former usually broader and all three distinct, or in most cases 

 two of them united into one under the lip. Leaves large, many 

 nerved and plaited, sheathing at base. Root of many tufted 

 fibres. Flowers solitary or few, large and showy. 



C. arictlnum, C. parviflbriim, C. pubcscens, C. spcctdbile, C. 

 acaule. 



Aplectrum. From the Greek a privative and itXrjxrpov, a spur, from the total 

 want of the latter. 



Arethusa. Name from the nymph Arethusa. 



Calopogon. Greek, naXoS, beautiful, and itooyoov, beard, from the bearded 

 lip. 



Calypso. Name from the goddess Calypso. 



Corallorhiza. Greek, uopdXXiov , coral, and pi'-ec, root. 



Cypripedium. Greek, Kunpii, Venus, and nudiov, a sock or buskin. 



Goodyera. Dedicated to John Goodyer, an early English botanist. 



Gymnadenia. Greek, yv/.Lvd$, naked, and a8rjv , gland. 



Habenaria. From the Latin habena, a rein or strap, in allusion to the shape of 

 the lip or spur of some species. 



Liparis. Greek, Xntapoi, fat or shining, in allusion to the shining or unctu- 

 ous leaves. 



Listera. Dedicated to Martin Lister, an early and celebrated British naturalist. 



Malaxis. From a Greek word meaning "soft," in allusion to the smooth 

 or unctuous leaves. 



Microstylis. Greek, /.nxpoS little, and drvXii, a column or style. 



