854 BOTANICON SINICUM. 
that it is produced by a metamorphosis of poplar flowers. 
The fou p‘ing consists of numerous small leaves floating 
on the water. Its tender, hair-like roots proceed from the — 
underside of the leaves. One kind has its leaves green — 
on both sides, the leaves of another kind are green above 
and reddish purple, like blood, beneath. The latter is called — 
3 | tse‘ (purple) p‘ing. It is much valued as a medicine. : 
Ch., XVIII, 5 :—Shui ping or fou ping. The figure 
represents Lemna (Duckweed). 
Lour., Fl. cochin., 492:—Zala asiatica [according to 
Roxsurex, Lovreimo’s plant is Pistia stratioides, Li]: 
Sinice: fou peng. Habitat fluctuans in fluminibus lenti 
cursus in Cochinchina et China. 
TAPAR.. Cat... 55:— Shut ping, Lemna gibba. [The 
name fou p‘ing tsz* has been confounded by Tarartnoy [24] 
with fu p‘en tse‘, Rubus. See 166.] The Peking Duck- 
weed is Lemna minor, L., is very common there and known ~ 
under the Chinese name fou ping tsz‘.—P. Smiru, 181, 
Lemna. 
Cust. Med., p. 358 (238):—Fou ping exported 1885 - 
from Canton 3.89 piculs,—p. 306 (480), from Amoy 0.02 
picul.®7 : 
Aman. exot., 900 :—PR fe, vulgo ukingusa, i.e. herba — 
natans. Lenticula palustris vulgaris. 
Phon zo, XXXIV, 1 :—Jk YK Spirodela (Lemna) poly- 
rhiza, Schleid.— Ibid, :--BF YF (green duckweed) Lemna 
minor, L.—Ibid., 3:—3& 4g (purple duckweed) Salvinia 
natans, Hoffm. 
* Fou-pting FF YE. [ Customs Med., export from Canton.) A sample 
of this drug [in the Pharmaceutical Museum, London] from Hongkong is 
Pistia stratiotes, L.—A, HEnry, ; 1 ae 
