GENERA AND SPECIES OF 



PHILIPPINE ORCHIDS 



I. DIANDRiE-CYPRIPEDILIN^E 



FOUR genera are recognized. Cypripedium L. has representa- 

 tives in both hemispheres. Selenipedium Reichb.f. is a small 

 genus of tropical American species. Phragmopedium Rolfe, a 

 genus of horticultural value, is chiefly South American. Paphio- 

 pedilum Pfitzer is confined to the tropical regions of Asia and 

 the East Indies. Five species, all of which are cultivated for the 

 beauty of their flowers, are natives of the Philippines. 



1. PAPHIOPEDILUM Pfitz. 



In the Orchid Review of January, 1912, R. A. Rolfe discussed the 

 nomenclature of the Cypripedilinae, and in a footnote referred all 

 the species which are representatives of Paphiopedilum to Cor- 

 dula Rafinesque. 



Rafinesque, in Flora Telluriana, part 4 (1836), page 46, pro- 

 posed four new genera, Sacodon, Stimegas, Cordula, and Nemo- 

 phora, to include species of Cypripedium. The first of these is rep- 

 resented by the group of which Cypripedium macranthum Sw. is 

 an example. Stimegas and Cordula, as understood by Rafinesque, 

 include species which Pfitzer referred to Paphiopedilum. Under 

 Stimegas Rafinesque included Paphiopedilum venustum and under 

 Cordula P. insigne. The fourth genus, Nemophora, from the de- 

 scription of the type species, is congeneric with Paphiopedilum. 



These Rafinesquean genera were not unknown to Pfitzer when 

 his Orchidaceas-Pleonandra? for Engler's Das Pflanzenreich was 

 prepared, but with the exception of Sacodon, Pfitzer wrongly 

 referred them all to the synonymy of Paphiopedilum. On the 



[9] 



