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OSMONDACEAE 
(Ferns) 
OSMUND A CINNAMONEA L, Cinnamon fern. 
OSMUNDA REGALIS L. Flowering fern. 
Extracts of the cinnamon fern were not repellent to the Japanese 
beetle.— Metzger and Grant ( 277 ) » 
Extracts of the rhizomes of both species killed none of the mos- 
quito larvae tested.— Hartzell and Wilcoxon ( 188 ) ♦ 
PARMELIACEAE 
(Lichens) 
CETRARIA ISLANDICA (L.) Ach. Iceland moss. 
To destroy eggs of Lepidoptera, trees were sprayed with a solution 
made by boiling 4 pounds of Iceland moss for 1 hour in 20 gallons of 
water, adding more water as needed to maintain a constant volume.— 
Chmielewski (96) . 
POLYPODIACKAE 
(Ferns) 
ADIANTW CAPILLUS-VENERIS L. Southern maidenhair. 
Extracts were not repellent to the Japanese beetle.— Metzger and 
Grant (277). 
DENNSTAEDTIA FUNCTILOBULA (Michx.) Moore. Hay-scented fern. 
Acetone extracts of the rhizomes killed only 10 percent of the 
mosquito larvae tested.— Hertz ell and Wilcoxon ( 188 ) . 
DRYOPTERIS FELIX-MAS (L.) Schbtt. Synonym: Aspldlum filix-mas (L.) 
SW. Male fern. 
The powdered rhizome of the male fern has been used since ancient 
times as an anthelmintic. A commercial extract (an oleoresin) was 
secured, and crude filicin was obtained from it. Preliminary tests on 
mosquito larvae ( Culex qulnquefasciatus Say) showed that the oleoresin 
was toxic. Purified filicic acid was four times as toxic as the crude 
filicin to these larvae. Satisfactory control of bean aphids was 
obtained with a spray containing 0.03 percent of crude filicin and 0.5 
percent of Penotrol.— Wilcoxon and coworkers (425). 
