259 157 
rupta ad basin pedicelli relicta. Stamen unicum, basi in utroque 
latere squamula perigoniali anguste lineari, filamento fere equilonga, 
munitum. 
Radices ce. 2—4(—6) mm. late. Folia 5—8 mm. longa, 1/3—1/2 
mm. lata. Pedicelli fructiferi 6—10 mm. long. Squamule perigo- 
niales c.1 mm. long. Stamina c.1,2 mm. longa. Styli duo, rarius 
3, longiusculi, lineares acuti. Capsula matura non visa; immatura 
c. 1,5 mm. longa. 
With regard to figures and a more exhaustive description I beg to 
refer to my 6% paper on the order Podostemacee in the ,Kgl. Danske 
Videnskabernes Selskabs Skrifter* 1901. 
On rocks in quickly flowing water. Only met with in two localities, both 
in Koh Chang, viz. Klong Majum alt. 700 ft. and Klong Sarlakpet alt. 600 ft. in 
small waterfalls in the jungle; it does not grow where the stream is less rapid. 
The specimens from Klong Majum were collected on February 23"4 and were ste- 
rile, whereas those from Klong Sarlakpet found on March 15th bore flowers and 
unripe fruit which extended above the surface of the running water. 
