308 MR. H. N. RIDLEY ON THE FLORA OF THE 
ALTERNANTHERA SESSILIS, R. Br. 
Very common both on the sea-shores and inland, in dry places. 
Also collected at Kamposa in Kelantan. 
Pekan, Ayer Hitam. 
POLYGONACE. 
POLYGONUM PEDUNCULARE, Wall. 
In a damp spot on the Sungei Parit, at Pekan. Flowers pink. 
P. FLACCIDUM, Meissn. 
Common in damp spots on the Pahang River. 
form at Pulau Rumput. 
Renchong ; Pulau Manis; а glabrous 
P. MICRANTHUM, Meissn. 
Common in damp spots, Katapong, near Pekan, Tanjong Antan, Pulau Tawar, 
Temerloh. 
NEPENTHACES. 
NEPENTHES AMPULLARIA, Jack. 
Kuantan. 
This species, though very common in the south of the Peninsula and especially in 
Singapore, becomes less frequent further north. It is described in the ‘ Flora of British 
India’ as “ prostrate, with a whorl of many short pitchers, above erect.” It is in 
the wild state far-climbing, making long stems, surrounded at intervals with clusters of 
pitchers. The pitchers are light green, sometimes plain, but oftener spotted with purple. 
This colouring depends on the amount of light the pitchers obtain; those half concealed 
among dead leaves, &c., are usually unspotted. I once met with a very fine variety 
with very large ivory-white pitchers. It was growing in deep grass, so that the pitchers 
were really blanched for want of light. 
N. RAFFLESIANA, Jack. 
Fairly common near Pekan, at Jambo, and also received from Kuantan. 
N. REINWARDTIANA, Miq. 
The commonest species in Singapore, common round Pekan. This plant prefers hot 
grassy places. 
N. enACILIS, Korth., var. ARENARIA. 
A compact tufted form, not scandent, with numerous small pitchers crowded together, 
almost imbedded in the sand. Pramau, Pekan, in dry sandy heaths. 
After leaving Pekan and the district immediately surrounding it, the Pitcher-plants 
disappeared, nor were any met with on the upper parts of the River Pahang, nor 
at Tembeling, nor in the Tahan district. 
