LIST OF ILLUSTRATIONS. 
THE MARGINAL SHIELD FERN. 4sfidium marginale. Plate IV. 
sori. Enlarged. A « a a 5 is o 
FRUITING PINNA, . . . . . F ‘i 
SORI. : . . a a . 
THE HOME OF THE WOOD FERNS. . . . , 
THE MALE FERN. . . é . . . . 
A FRUITING PINNA. + . . . . . . 
GOLDIE’S SHIELD FERN, <lsf/dium Goldieanum. . . 
ASPIDIUM CRISTATUM. Middle pinnae. . : : F 
CRESTED FERN, “8Aédtume cristatum. 7 
ASPIDIUM CRISTATUM CLINTONIANUM. Middle pinna. : 
ASPIDIUM BOOTTII. - . . ci 5 c 
ASPIDIUM CRISTATUM CLINTONIANUM, . . . 
ASPIDIUM BOOTTII, Lowest pinna. : 7 
SPINULOSE SHIELD FERN. “sfédium Meee intermed lume, 
CRESTED FERN. “sfidium cristatum. Sterile frond. 
APINNULE, Much enlarged. “ i Pi 
ASPIDIUM SPINULOSUM DILATATUM, Lowest pinna, . 
FRAGRANT FERN. <spédium fragrans. : : F 
A FRUITING PINNA. - . a . . . 
FRAGRANT FERN. 45fpidium fragrans. és * e 
FROND OF MAIDENHAIR SPLEENWORT. . . . 
GREEN SPLEENWORT. -1sAlentum viride. 5 . 7 
FROND OF GREEN SPLEENWORT,. . . . . 
SMALL SPLEENWORT. 4 sAlenzum parvulum. a é 
EBONY SPLEENWORT. A sAlenium ebeneum, . y é 
A FRUITING PINNA. - : . . é x 
EBONY SPLEENWoRT. Fertile frond. . . “ 
THE WALL RUE. 4 sAlentum ruta-murartia. Three forms of fronds. 
MOUNTAIN SPLEENWORT 4sAlentum montanum. 
FERTILE FROND OF MOUNTAIN SPLEENWORT. . 
ASPLENIUM BRADLEY|I. . : . . é 
FRUITING PINNA: OF ASPLENIUM BRADLEYI, - . . 
ASPLENIUM PINNATIFIDUM. A fertile frond. . 2 
ix 
PAGE. 
Jacing 
JSacing 
Sacing 
Jacing 
JSacing 
facing 
Sacing 
SJacing 
Sacing 
THE PINNATIFID SPLEENWORT. 1 splentum pinnatifidum. Plate V. facing 
ASPLENIUM EBENOIDES- . . . . . . 
ASPLENIUM FONTANUM- - . < F * 
LADY FERN. Athyrium filix-femina. . é . i 
PINNA OF VARIETY OVATUM. A common form. 7: . 
FRUITING PINNULE. Enlarged. 
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