136 THE FLORA OF SINGAPORE. 
P. wrinaria L. “ Dukong Anak.” Common weed everywhere, 
used medicinally, and it is also supposed that after 
chewing a bunch of this plant it is possible to bite up 
glass with impunity. 
(P. distichus Muell. Cieca acidissima is sometimes cultivated.) 
(ilochidion. Trees with inconspicuous flowers. ‘ Ubah,” of 
the Malays. 
Gi. littorale Bl. Banks of tidal rivers, Chan Chu Kang. 
(i, goniocarpum Hook. fil. Not rare, Tanglin, Bukit Timah, 
Galange. 
G. desmogyne Hook. til. Rare, Bukit Timah, Selitar. 
G. insulare Hook. fil. Not rare, Selitar, Bukit Mandai, Toas, 
Jurong, ete. 
CG. brunneum Hook. fil. ‘‘Ubah Merah.” Gardens, Bukit 
Timah. 
G. desmocarpun Hook. fil. Not common, Tanglin, Bajau. 
G. levigatun Took. fil. Bukit Timah, Sungei Bruang, Bukit 
Mandai. 
G. microbotrys Hook. fil. Tall tree with flaking bark. Flowers 
very small scented of cucumbers. Gardens, Chan Chu 
Kang, Changi, Pulau Ubin. 
G. superbum Baill. Small tree with large leaves. Common in 
open country all over Singapore. 
G, leiostylum Kurz, Common, Gardens, Selitar. 
7. eoronatum Hook. fil. Rare, Jalan Bray. 
=) 
Breynia rhamnoides Muell. Large shrub, Eskbank (Hullett). 
B. discigera Muell. Rare, Upper Bukit Timah. 
B. reelinata Hook. fil. ‘“ Hujan Panas.” <A shrub conspicuous 
from its bright red berries, but why called Hujan Panas, 
