92 PRESENT-DAY GARDENING 



Cypripedium. This is one of the largest, most useful, 

 and most prolific genera, which, although commonly 

 known in gardens as Cypripedium, may be divided into 

 several distinct classes. Most of those generally known in 

 gardens as Cypripediums have been termed Paphiopedilum, 

 including C. barbatum, and C. Rothschildianum, and the 

 green-leafed class, more commonly known in gardens as 

 Selenipedium, are now termed Phragmopedilum. The name 

 Cypripedium, however, has so firm a hold on cultivators 

 that it is convenient to retain it in gardening handbooks. 



The Cypripediums have very numerous hybrids, and 

 their numbers increase annually. An enumeration is there- 

 fore impossible within the scope of this work. All require 

 to be treated as terrestrial Orchids, a proportion of fibrous 

 loam (see the chapter on potting terrestrial Orchids) being 

 added in proportion to the strength of the subject, the 

 largest proportion being given to the strongest growers. 

 The Selenipedium, or green-leafed section, should be potted 

 in fibrous loam, with a sprinkling of leaves and Sphagnum- 

 moss. C. insigne, C. Spicerianum, C. Charlesworthii, and 

 others of the class, also hybrids of them, may be grown 

 in the cool house. C. Rothschildianum, C. Stonei, and the 

 whole of that section require the highest temperature, but 

 all may be grown successfully in an intermediate house. 

 C. insigne Sanders is illustrated in Plate I. 



Cyrtopodium. A strong-growing genus needing to be 

 grown in the intermediate house. The plants should be 

 potted as terrestrial Orchids. C. punctatum is the showiest 

 and most easily grown species. 



Dendrobium. One of the largest and most decorative 

 genera of epiphytal Orchids, comprising several hundred 



