PLANTS MENTIONED IN CLASSICAL WORKS. 313 
It seems that in Japan the above three Chinese names are 
all applied to the same plant, < gle sepiaria or Citrus 
trifoliata.. But the Chinese authors keep the latter two names 
apart for a plant distinct from the chi. 
P, XXXVI, 20, Hy $§ hou ka, also BRK chou ki 
(stinking orange). The Chinese authors say that it is a 
very common shrub, resembling the orange tree. It is very 
thorny. The flowers are white, not fragrant. The fruit is 
globular, resembles that of the #8 chi, but the rind is thinner, 
not fragrant. The people plant this shrub to form hedges. 
Ch. [XXXV, 61] figures under hou ki an Aurantiacea 
with long spines, large flowers and fruit of the size of a 
: walnut, The A@ lu (a treatise on oranges, of the 12th century) 
_ States that the hou ki is much cultivated for hedges, and that 
__ its fruit is used as a medicine like that of the chi. 
One of the two Aurantiucee noticed by the Chinese authors 
_ under the names of chi and kou kit as distinct plants may 
perhaps be the Triphasia trifoliata, DC., (Tr. aurantiola, 
he Loureiro, 189}, a thorny bush indigenous to China as well 
- to Japan and cultivated at Kew [ Gardn, Chron, 1881, 
H, 654), It has frequently been confounded with the Citrus 
‘ trifoliata, z 
Fap., 611, Citrus Jusca, Lour., #. C., 133, 137, SotX, oN 
Bo 354, family R- 
a bivaradia, Duham, 5 #¥- 
n OTE, 74, Japonica, Thbg., var. fructu globose, & ha- 
i POIZ} japonica, Thhg., var. fructu elliptico, & He. 
yy PG Kg 2035): medica, Risso., var. chirocarpus, Lour., fh 
- : F HH. an 
S 489.— Hk Ka. Mentioned as the name of a fruit in the 
Mi ki (L, 461]. [V. supra, 484, note]. Leacr says it is - 
Hovenia duleis, Also in the Li ké [1, 119] noticed as a fruit 
Used by women as a present of introduction. oe 
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