254 COMPOSITE. 
B. densiflora very closely resembles B. balsamifera, and i 
united with it by some botanists. 8B. lacera has an ere 
branching stem, the principle leaves of which are petioled an 
lyred, the superior ones simply oval and much smaller, a 
are sharp toothed, downy, and various in size. 
terminal, and from the exterior axils, peduncled. Flowers a 
dull yellow. The plant has a strong odour of wormwood and 
camphor. 
Chemical ee —B. balsamifera and densiflora contain 
yielded C 77°66, H 11-68, O 10°66 and Laurel camphor € 78 2, 
H 10°44, O 11°36. Ngai camphor has the same physical pr 
perties as Borneo camphor, but the two substances differ 
optical properties, an alcoholic solution of the former be 
levogyre in about the same degree that one of the latter 
dextrogyre. By boiling nitric acid, Borneo camphor is & 
formed into common (deatrogyre) camphor, whereas Ngai ca 
in China is about 250 dollars a picul, whereas te 
costs about 2,000 dollars for the first quality and 1,000 dol 
for the second. 
Blumea eriantha, DO., a native of Western India, is 
called Nimurdi in Marathi, and is used by the country peopl 
drive away fleas. It is very common in the Concan, and is 
remarkable for the clusters of globose, woolly buds crow 
together at the crown of the root, aud for the pe Es ey 
caraways which it possesses. The habit of the plantis v 
in cultivated ground it is erect, but in pasture land pros 
or decumbent. The io are Sige ay 
