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SAUROMATUM GUTTATUM Schott. Synonym: Arum venosum Ait, 
This plant was observed during its blooming period to attract in 
2 days more than 100 flies, which were found dead in the bottom of the 
flowers •—Anonymous (15). 
SYMPLOCARPUS FOETIDUS (L.) Nutt. Synonym: Spathyema foetida (L.) Rpf. 
Slcunkcabbage. 
Extracts were not repellent to the Japanese beetle.— Metzger end 
Grant (277). 
Acetone extracts of the roots killed 65 percent of the mosquito 
larvae tested,— Hartzell and Wilcoxon ( 188 ) . 
SYNANDROSPADIX VERMITOXICUS Engl. 
The bulbs served for the destruction of injurious insects. — 
Greshoff ( 170 , p. 158). 
ARALIACEAE 
(Ginseng Family) 
ARALIA HISPIDA Vent. Bristly aralia. 
ARALIA RACEMOSA L. American spikenard. 
Extracts from these plants were not repellent to the Japanese 
beetle.— Metzger and Grant ( 277 ) . 
ARALIA NUDICAULIS L. American sarsaparilla. 
Acetone extracts of the roots killed only 45 percent of the 
mosquito larvae tested.— Hartzell and Wilcoxon ( 188 ). 
HEDSRA HELIX L. English ivy. 
In England it was recommended that a solution of ivy be pumped 
with a garden engine upon the caterpillars of the ermine moth. — F. 
( 132 , p. 179). 
In England extracts of ivy were tested against cpterpillars. 
A 5-percent spray solution made from a commercial extract killed 43 
percent of the six species tested within 7 days, «nd a 1-percent 
solution killed only 13 percent of four of these species. In other 
tests with decoctions of ivy leaves, fairly good results were ob- 
tained but not sufficiently so to render them preferable to various 
other insecticides.— Duke of Bedford and Pickering (53, pp. 83-94). 
