VARIATION IN HARTS TONGUE FERN. 



HG. 22. Mutations of Hart's Tongue Fern (Scolopendrium vulgare}. After LOWE. 



1, Typical ; 2, variety sagittato-cristatum ; 3, reniforme ; 4, cristatum ; 5, eontractum ; 

 6, stansflcldii. 



{Facing p. 98 



