INDEX. 
394. 
PTERIS. 50, 
aquilina ....... 
its varieties . . . . . . 
its distribution..... 
its culture . . . . . . 
crispa . . . . . . . . 
Receptacle . . . . ■. . . 
SCQLOPENDRXUM ... 50, 
alternifolium . . . . , . 
Ceteracb . . . . . . . 
officinarum . . . » . . 
Phyllitis . . . . . . 
Ruta-muraria . . . . . 
septentrionale . . . . . 
vulgare ....... 
its varieties . . . . . 
its distribution .... 
its culture . . . . . . 
Scythian lamb, a vegetable 
curiosity ... . . . 
SELAGINELLA . ... 53, 
spinosa . 
its distribution .... 
Silver Ferns. 
Sorus . . . . . . . . . 
Spore-cases.. 
Spores ... 
compared with seeds . . . 
their structure . . . . . 
their mode of growth . . . 
Structure . . ... . . 
what a Fern is . . .. . i . 
root . . .... . . . 
, stems ........ 
leaves, or fronds .... 
great variety of ... . 
duration of. 
parts of . .. 
mode of division .... 
aestivation of . . • . . 
venation of. 
stipes.. . . 16 
fructification ...... 20 
receptacle ...... 19 
internal structure - . ' 22 
Struthiopteris— 
Spicant . ..165 
Study of Ferns, best method of 2 
Table of groups and genera . 48 
Table of species ..... 55 
Tarachia— 
laneeolata ....... 147 
Thelypteris— 
palustris.. 98 
Topographical aspect of Ferns . 33 
arborescent, or tree Ferns . 34 
shrubby Ferns.34 
herbaceous Ferns .... 34 
epiphytal Ferns.35 
TRICHOMANES .... 52,189 
alatum . . .... . . 193 
brevisetum . . . . . . 193 
radicans. . 189 
its variety . . . . . . 190 
its distribution .... 363 
its culture . . . . . . 193 
speciosum ..193 
tunbridgense . . . ... 196 
Uses of Ferns ....... 36 
food-yielding species ... 37 
medicinal species .... 37 
economical species .... 38 
Wardian cases . . . . . 30, 229 
WOODSIA.52, 184 
alpina.187 
its distribution . . . . 363 
its culture ...... 189 
hyperborea.188 
ilvensis ....... 186 
its distribution .... 364 
its culture ..189 
165 
167 
170 
360 
171 
85 
19 
154 
133 
154 
161 
161 
134 
131 
156 
158 
360 
161 
39 
227 
227 
386 
3 
20 
20 
20 
23 
23 
24 
9 
10 
11 
12 
14 
15 
15 
16 
17 
18 
19 
COS AND WYMAN, PBINTEBS, GBEAT QUEEN STBEET, LONDON. 
