314 CHINESE MATERIA MEDICA. 



for this reason is much used for buildings and furniture. The 

 tree has reddish-yellow flowers, and a fruit resembling cloves, 

 green in color, but which is not edible. The tree grows to the 

 height of more than a hundred feet, and the wood is red in 

 color in the best varieties. The white wood is more brittle 

 than the red. The root is called ^ ^ |"^ (T'ou-pai-nan), and 

 is used for making utensils. The twigs of the tree are used in 

 decoction for the treatment of choleraic difficulties, and as a 

 fomentation in sprains and swellings. The bark is similarly 

 used, as well as in infants that vomit up their milk. 



PEUCEDANUM DECURSIVUM.— fi| fS (Tu-huo), 

 1364. Faber also gives 'fjlf ^ (Ch'ien-hu), but this is Angelica 

 refracta (which see). The Chinese name is derived from the 

 belief that the plant is not moved by the wind, but that it is 

 self-moving when there is no wind. For this reason it is 

 also called Jg ^ ]^ (Tu-yao-ts'ao). Another name is ^ fg 

 (Ch'iang-huo), 81, but this is said to indicate another species 

 or variety. As this latter name indicates, the plant is found 

 in Thibet, Kokonor, Kansu, and now in Szechuan ; that from 

 the latter place being more distinctively known as Tji-huo. 

 There is a difference in the appearance of the drug between 

 these two kinds, the Tu-huo coming in long, twisted pieces, 

 deeply marked both lengthwise and crosswise with ribs or strise, 

 with portions of the crowning leaves of the root-stock sometimes 

 still attached. The exterior surface is of a dark or yellowish 

 brown color, and the interior is open in texture and is of a 

 dirty-white. The ChHang-huo is much darker in color, and is 

 marked off into short internodes of nearly three quarters of an 

 inch in length, by rings or ridges of tissue which indicate 

 joints. This is less apparent in some samples, which are 

 probably mixed. The interior, yellow, woody tissue is very 

 brittle, and loosely arranged in wedge-shaped masses, a thick- 

 ness of red cortical fibers intervening between the vascular 

 bundles and the epidermis. Both drugs are similarly prescribed 

 as stimulant, arthritic, antispasmodic, and derivative remedies. 

 They are administered in catarrh, colds, rheumatism, apoplexy, 

 leprosy, post-partum difficulties, dropsy of pregnancy and other 

 dropsies, and in headache. 



