126 THE FLORA OF SINGAPORE. 
Alternanihera sessilis Br. Common every where. 
Pupalia atropurpurea Mig. Singapore (Wallich in Flor. Brit. 
Ind., but in Wallich’s Catalogue it is labelled 6933 L. 
Singapore et Penang). Not seen here by me. 
POLYGONACE®, 
Polygonum flaccidum Meisn, Common in wet spots, ditches, ete. 
Tanglin, Bukit Timah Road, Rochore. 
P, pedunculare Wall. Singapore. Wallich, not seen. 
P. barbatum L. Ditches, Holland Road, Galang, Chan Chu 
Kang. 
NEPENTHACER. 
The pitcher plants are known to the Malays as ‘“ Poko 
Priok Krah,” (ape’s cups). The stems of the stouter 
kinds are used for binding fences. They always occur 
in open country, borders of woods, -etc., and are absent 
from dense jungle. 
N. ampullaria Jack. A common kind with the pitchers in whorls 
often sunk in the ground, pitchers green, or more or less 
spotted with purple. I once found a plant with ivory 
white pitchers. Tanglin, Chan Chu Kang, etc. 
NV. Rajflesiana Jack. Pitchers often very large. Common all 
over Singapore. 
NV. phyllamphora Willd. Not common, Changi, Jurong. 
N. Reinwardtii Mig. Common, Bukit Timah, Changi. 
NV. gracilis Korth, Blakang Mati, Changi, Bukit Timah. 
NV. albomarginatu Lobb. “Singapore, Wallich.” Surely an error 
for Penang, where it is abundant. 
ARIS TOLOCHIACEAE. 
Aristolochia ungulifora Mast. A climber with large trilobed 
leaves and purple tlowers. Local in long wet grass. 
Jurong. 
