MATERIA MEDICA OF THE ANCIENT CHINESE. 477 
and harsh taste. They are used in medicine, The wood is 
fit for making pattens. . 
Ch., XXXIII, 18:—Tu chung. Rude drawing. 
Tarar., Cat., 21:--Tu chung. Cortex tenuis arboris.— 
Ihave seen the drug tu chung. It is a bark. As P. Smira 
[94, sub Zvonymus] correctly describes, on breaking it, and 
drawing the fractured edges asunder, a delicate, silvery, 
silky fibre is seen, which may be drawn out to the length of 
almost an inch without breaking. 
Henry (Chin. pl., 477] states that tu chung in Hu pei 
is a new species of Ulmus. But subsequently he informed 
me that he had sent fruits of the tu chung to Kew, where the 
botanists considered it to bean euphorbiaceous plant.® 
Cust. Med., p. 72 (101):—Tu chung exported 1885 from 
Han kow 1,707 piculs,—p. 60 (39), from I chang 7 piculs. 
Phon zo, UXXXII, 14,15 :— fk fit. Japonice : totchiou. 
Evonymus Sieboldianus, Bl.—Horru. & Scaur., 238, same 
Chinese name, Evonymus japonicus, Thbg.—Srxs., Icon. ined., 
IIT, same Chinese name, Evonymus totsju (i.e. Sieboldianus). 
Sies., Beon., 269 :—Evonymus japonicus, Thbg. # ff. 
Japonice : masaki. Pro sepibus vivis. 
The plant which yields the drug tu chung has been 
described and figured in Hooxer’s Icones. Plant. [tab. 1950] 
under the name of Eucommia ulmoides [a new genus]. The 
Most singular feature about the plant is the extraordinary 
abundance of an elastic gum in the bark, the leaves, the 
Petioles and the pericarp; any of these snapped across, and 
the parts drawn asunder, exhibit the silvery sheen of 
innumerable threads of this gum. 
318.—% tsi. Varnish yielded by the Chinese Lacquer 
Highs. +h tree, i.e. the one 
“pecimens sent from Hu peh of the true Tu chung 
_ affording the peculiar bark eb as a drug, were at first yee ester e toate! 
abecles of Uimus, but OLIVER now thinks differently and ae  Pheutarion 
Sured the tree as Eucommia ulmoides, Oliv. HooKxer, Le. . 
table 1950,~A, Tlewry. 
