TERKESTRIAL CYPRIPEDIL'MS. 315 



A Selection of Terrestrial Cypripediums that may be Grown 

 Either in a Frame or Greenhouse. 



All these can be cultivated in a cool greenhouse or frame, either 

 planted out or in pots. Indeed, many of the terrestrial kinds enumer- 

 ated below will succeed well in the open air if a little care is bestowed 

 upon the selection and preparation of the situation. The number of 

 species we have here enumerated is not great ; but in the course of a 

 few years they might receive numerous accessions if plant-loving ladies 

 and gentlemen, as well as gardeners, would take up the growth of these 

 beautiful plants. Any one having friends in North America, Japan, or 

 Siberia, should strongly impress upon them the desirability of sending 

 home the tubers of any species they may find. By this means we should 

 soon make many valuable additions to our collections of hardy and half- 

 hardy Cypripediuvis. 



Culture. — The species and varieties described in the following 

 selection are all terrestrial, and in cultivation must not be elevated above 

 the rim of the pot, as is the custom with the epiphytal kinds, but there 

 must be a space of an inch or more from the rim to the soil, to allow 

 of a sufficient quantity of water being given at one time. The soil best 

 adapted for their growth is a mixture of good fibrous loam, turfy peat 

 and silver sand, adding more or less of each, according to the peculiar 

 habitat of the particular plant to be potted. They must all have good 

 drainage, and the addition of lumps of sandstone or of charcoal, and in 

 the case of some, broken pieces of limestone, to the soil will have a bene- 

 ficial effect, serving to keep the mass open, and the roots cool and moist. 

 They are mostly propagated by division of the roots, just as the fresh 

 growth commences ; and though they all require a season of rest, they 

 must never be allowed to become dry at the roots, nor must the 

 temperature be allowed to be lower in winter than from 3-5° to 40° — ■ 

 not that certain kinds will not withstand some few degrees of frost, but 

 we believe they will all thrive far better if not subjected to such 

 extremes. In the growing season, abundance of water should be poured 

 round and about them, to keep a moist and cool atmosphere in which 

 they delight. 



C. ACAULE.— See C. uumile. 



C. ARIETINUM, R. Brown. — This is a remarkable species, having free lateral 

 sepals ; the lip is white, curiously chequered with bright rose ; the upper sepal 



