TO 
DR. GEORGE METTENIUS, 
PROFESSOR OF BOTANY, AND DIRECTOR OF TIIE BOTANIC GARDEN 
AT THE UNIVERSITY OF LEIPZIG, 
THE ABLE AUTHOR OF 
“ EILICES II OUT I BOTANICI LIPSIENSIS,” 
AND OF VARIOUS MEMOIRS, 
“UBEB EINIGE FABBN GATTUJs GEN,” 
THIS CENTURY OF FERNS 
IS DEDICATED, 
IN TESTIMONY OF GREAT RESPECT AND ESTEEM, BY 
THE AUTHOR. 
Boyal Gardens, Kew, 
May, 1861 . 
