DESCRIPTIVE LIST. 377 



Ponthieva petiolata Lodd. Cab., 760, 



B. C., 1190. 



These plants should be grown in peat, leaf mould, and 

 potsherds, with good drainage. 



In the resting season they should be removed to the 

 cooler house, and have very little water. 



Preptanthe. 



A name proposed for the deciduous species of Cal- 

 anthe. 



Prescottia. Lindley. 



Name in honor of John Prescott, a botanist of St. Petersburg. 

 There is nothing desirable in this genus. 



Prescottia colorans. B. R., 22, 1916. 

 P. plantaginia. Lodd. Cab., 990. 

 P.plantaginifolia. Hook Ex., 115. 



Promenaea. Lindley. Epiphyte. 



For npojuei/etcc, a prophetess of Dodona. 



B. Promencsa titrina. Brazil. 



Flowers rich yellow, with dark crimson at base of the 



HP. 



C. Promencea Rollinsonii. Brazil. 

 Flowers pale yellow, produced in autumn. 



C. Promencsa stapelioides. Brazil. 



Flowers green and yellow ; lip blackish purple, in July, 

 August, and September. 



