FERN (Male)

Syn. Male shield fern , Filix mas , Radix filicis , L. The root (rhizome) of the Lastræa Filix-mas , or male fern. It is bitter, astringent, or vermifuge.— Dose , 1 to 3 dr. in powder, or made into a decoction, repeated for 3 or 4 days, and followed by a purge. It is chiefly given in tapeworm. In Switzerland it is deemed almost infallible, but has proved le succe ful in these countries. See Oils .