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CARTHAMUS TINCTORIUS L. Saf flower. 
In Bengal the oil was considered to be a valuable remedy for itch.— 
Kirtikar and Basu (230 , v. 1, p. 717). 
CENTIPEDA ORBICULARIS Lour. 
This species was said to be used in Sind, India, as an insecticide. — 
Roark (332, p. 8). 
CHRYSANTHEMUM ACHTLLEAE L. Synonym Pyrethrum a chilleae DC. 
The opened flower heads had some effect on flies, fleas, and ants; 
they were not much inferior to those of C. _cinerariaefoiium » — Passerini 
(303). 
CHRYSANTHEMUM CAUCASICUM (Willd.) Pers. 
Persian insect powder was reported to be made from this species .~ 
U. S. Commissioner of Patents ( 407 ) . 
CHRYSANTHEMUM CINERAPJAEFOLIDM (Trev.) Vis. Synonym: Pyrethrum cin - 
eraria efolium Trev. Dalmatian insect flowers. 
CHRYSANTHEMUM COCCINEUM Willd. Synonyms: _C. roseum Adam, Pyrethrum 
earn sum Bieb. Persian insect flowers. 
These two species and C. marschallii were recognized by the 
Insecticide and Fungicide Bo~ard of the United States Deportment of 
Agriculture in 1911 as sources of genuine £ pyrethrum^ insect powder.— 
McDonnell and coworkers ( 251 ) • 
The literature on pyrethrum as an insecticide is too extensive to 
include here. 
CHRYSANTHEMUM CORONARIUM L. Crown daisy. 
The flowers were entirely inactive against flies.— Kalbruner ( 224 ) . 
CHRYSANTHEMUM CORYkBOSUM L. Synonym: Pyrethrum corymbosun Scop. 
The flowers were feebly benumbing to flies. — Kalbruner ( 224 ) . 
A powder made from the opened and unopened flower heads, dried in 
the sun, was slightly less active than genuine insect powder against 
ants and flies.— Bohmer (66). 
The opened flower heads were not of much value against flies, dog 
fleas, and ants. — Passerini (303). 
