376 ORCHIDS. 



Polycycnis barbatus and musciferus are referred to Cycno- 



ches. 



Requires to be grown in a basket, to display it to best 

 advantage, in peat and moss, in the Mexican house. 



Polystachya. Hooker. Epiphyte. 



Name from iro\vs, many, and a-rdxvs, a spike. 

 This genus contains few plants of interest. 



Polystachya pubescens. 



From South Africa, is a pretty plant, with bright golden 

 yellow flowers, with purple lines. It should be grown in 

 peat and moss, with plenty of water and not much heat. 



Other species are : 



Polystachya bracteosa. B. M., 4161. 

 P. carnea. Fl. des Ser., 1521. 

 P. grandiflora. B. M., 3707. 

 P. luteola. Hook. Ex., 103. 



Ponthieva. Brown. Terrestrial. 



Dedicated to M. de Ponthieu, a West Indian merchant. 



The plants of this genus are more curious than beauti- 

 ful ; the only species worth the attention of the amateur 

 is : 



C. Ponthieva maculata. New Granada . . . Portf., 2. 

 Flowers white, irregularly marked with gray, and 

 spotted with purple ; lip deep yellow. 



