OltCHIDACEiE. 



291 



tissima, foliosa, etc. They require the same treatment as 

 the plants of the last genus, but are not easily cultivated, 

 for the roots do not readily increase out of their native lo- 

 calities. The bulb or tuber of the season produces an off- 

 set, which will bear the plant of the succeeding year, so 

 that when an Orchis is taken out of the ground after the 

 season is over, there will be found a shrivelled and a plump 

 tuber, the latter containing the young plant. 



CYPRIPEDIUM. 



A genus known by the English name of Lady's Slipper ; 

 the species are very beautiful, and those grown in an atmo- 

 sphere of heat and moisture are tolerably easy of culture, as 

 C. larlatum, having purple and green flowers; insigne, 

 purple, green, and white ; Irapeanum, yellow ; venustum, 

 green and red ; and Lowii, with purple and green flowers. 

 The more hardy species are chiefly natives of North Ame- 

 rica, and are met with in the woods of that country, where 

 they are called " Mocassin Flowers/'' they should be culti- 

 vated in a shady frame, which in summer even should be 

 closed, to keep the plants in a cool, quiet, moist atmosphere ; 



