LIST OF COOL ORCHIDS. 137 



C. spectabile (North American Woods), syn. C. album, C. 

 regince, C. Jiirsutum, and G. canadense. One of the most 

 chastely beautiful of the whole family, even rivalling C. niveum 

 of the tropical section in delicacy of colouring. Sepals and 

 petals pure white ; lip white, suffused with bright rose ; flowers 

 solitary, or in pairs. 



C. acaule (North America), syn. C. Jiumile. Not caulescent. 

 All the others here named are furnished with leafy flower- 

 stems. Leaves two, radical, from the centre of which the 

 flower-stem rises, bearing a solitary flower, with a large, in- 

 flated, rosy-purple lip, depressed in front. 



C. arietinum. Stem bearing from three to four lanceolate 

 leaves, and terminated by a small flower, having narrow sepals 

 and petals ; lip tapering to a blunt point, woolly on its supe- 

 rior part, of a white colour, chequered with rose. 



C. Irapeanum (Pelican Flower). Flowers similar to those of 

 C. spectabile in form, but larger, and of a bright, clear, golden 

 yellow colour. The lip is rather deeper coloured than the other 

 segments, and is spotted inside with bright red, forcibly 

 reminding one, in form and markings, of a large-flowered 

 herbaceous Calceolaria. 



C. montanum (N. America). Stems two or three-flowered ; 

 sepals acuminate, two and a half inches long; lip white, of 

 the size and form of that of C. spectabile; the longer segments, 

 however, may serve to distinguish it. 



C. passerianum (N. America, syn. C. parviflorum of Eichard- 

 son). Lindley describes this species as being nearer in 

 afnuity to C. spectabile than any other North American plant, 

 but its flowers are many times smaller, and, in addition, the 

 front sepal is bidentate. 



C. cordigerum (N. India.) Of this Lindley speaks as follows : 

 " If this species had not white flowers, with pale green 

 sepals and petals, I should have no doubt of its being a mere 



