VARIATION IN HARTS TONGUE FERN 



TlG. 22. — Mutations of Hart's Tongue Fern ( Scolopendrium milgare) After Lowe. 

 Typical ; 2, variety sagittato-cristatum : 8, reniforme ; 4, cristatum ; 5, contractum ; C, stansfieldii. 



I Facing p. 98 



