VARIATION IN HARTS TONGUE FERN 



Fig. 22 — Mutations of Hart's Tongue Fern ( Scolopendrium vulgare) After Lowe. 

 1, Typical ; 2, variety sasittatocristatuiii ; .3, renifonne ; 4, cristatum ; 5, contractum ; 6, stansfieldii. 



Facing p. yS. 



