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Polypody, Common . 
,, Limestone 
Polystichum Aculeatum . 
,, var. Lobatum 
Angulare 
Genus of 
Lonchitis . 
Prickly-toothed Fern, Broad 
,, „ Narrow 
Prothallium 
Pteris Aquilina 
,, Genus of 
Recurved Fern 
. Reproduction of Ferns 
Rigid Fern 
Royal Fern 
Rue Fern 
Scolopendrium, Genus of 
„ Vulgare 
Shield Fern, Lobed . 
„ „ Prickly 
,, ,, Soft • 
Sori 
Species 
Spleenwort, Alternate-leaved 
Black . 
Common 
Forked 
Green . 
Lanceolate 
Scaly . 
Sea 
Smooth Rock 
Sporangia 
Spores .... 
PAGE. 
• 36 
• 33 
• 37 
• 3* 
• 39 
• 37 
• 39 
• 25 
• 30 
1 
• 4 i 
. 40 
• n 
. 1 
. 29 
. • 48 
. 11 
. 42 
• 42 
• 3« 
• 37 
• 39 
. 1 
• 3 
. 8 
• 7 
• 12 
. 11 
. 12 
• 9 
. 16 
. 10 
• 9 
1, 60 
1, 60 
