538 BOTANICON SINICUM. 
grows underground, but not always under the root of the feng 
tree. It is also called Hh E Pk t wu tao (black ground 
peach). 
Ii Sut-cuen :—The chu ling are excrescences produced 
by the superfluous vapors of trees, in the same way as the 
fu ling is produced by the fir tree. The feng tree produces 
the chu ling in the greatest abundance. 
Ch., XXXII, 55 :—Chu ling. The figure represents a 
plant with pinnate leaves, not tubers. 
Tavar., Cat., 17 :—Chu ling. Not identified. 
Hans., Se. pap. 204, 269:—Chu ling. Production 
similar to the Pachyma Cocos [see 350] but smaller.—See 
also BerKeExey, l.c. [supra, sub 350]. | 
Cust. Med., p. 66 (10):—Chu ling exported 1885 from 
Han kow 1,337 piculs,—p. 22 (13), from Tien tsin 379.91 
piculs,—p. 58 (8), from I chang 123.93 piculs. 
Phon zo, XCIII, 6r, Hi 2. 
803.—H FL lei huan (wan). P., XXXVII, 12. T, 
CXXXVI. 
Pen king : —Lei huan (thunder-ball). Taste bitter. 
Nature cold. Slightly poisonous. 
Pie lu:—Other names: 4 PE lei shi (thunder-fruit), 
KR lei shi (thunder-dirt). The lei huan is produced im 
Shi ch‘eng [fin An hui, App. 285] in mountain-valleys, also 
in Han chung [S. Shen si, App. 54]. Produced underground. 
The root is gathered in the 8th month. : 
Tso Huna-Krve :—It is produced in Kien p‘ing and 
I tu [both in Hu pei, App. 139, 104], and appears as small 
balls joined together. 
