34 NEW OR RAKE MALAYAN PLANTS. 



This plant I took at first for Reichenbach's Ploco- 

 glottis Loivii (Xenia Orchidacea Vol. II p. 142. pi. 154). 

 But even allowing for very rough drawing this can hard- 

 ly be intended for the common Sarawak species. The 

 flowers of this exactly resemble those of P. moluccana 

 Bl. but that is figured and described as belonging to the 

 group of many leaved Plocoglottis. No one seems to 

 have seen Plocoglottis Lowii since it was first intro- 

 duced. It is described as having yellow and brown flow- 

 ers as large as those of cattleya luteola. By some extra- 

 ordinary error Hallier has identified it with a plant 

 which from his figure and description I take to be PI. 

 porphyrophylla Ridl. and J. J. Smith has followed this 

 determination in his orchids of Amboina. No two spe- 

 cies of the genus are more utterly dissimilar. PL porphy- 

 rophylla with its dull purplish flowers half an inch across, 

 and most peculiar lower sepals cannot possibly be the 

 plant Reichenbach intended, with flowers 2 inches across, 

 bright yellow with the lower sepals quite resembling 

 the upper one. 



The following are the species of the genus known. 

 Some from Borneo. 



Species with single leave to each pseudobulb. 



PL Loivii, Rchlf. Locality unknown said to be Bornean, 



PL borneensis, Ridl. Sarawak. 



P\ porphyrophylla, Ridl. (PL Lowii Hallier not Reichen- 

 bach) recorded from Borneo by Hallier. 



PL parviflora, Ridl. 



Species with leafy stems. 



PL dilatata, Bl. Sarawak, Mt. Kowa. Braang (Haviland 76) 

 on limestone rocks. 



Jour. Straits Branch 



