28 Flora of Canada. 



A. Thclypteris— Swamp Shield Fern. 



A. cristatum — Crcstcd-shield Fern. 



A. marginalc — xVIarginal Fruit Shield Fern. 



A. Goldiana — Goldie's Shield Fern. 

 Polystichum acrostichoides — Terminal Shield 



Fern. 

 P. aculeatum — Prickly Shield Fern. 

 P. lonchitis — Holly-leaved Shield Fern. 

 P. fragaris — Sweet-scented Shield Fern. 

 Cystopteris fragilis — Slender Bladder Fern. 

 Struthiopteris pensylvanicia — Ostrich Fern. 

 OnocHa sensibilis — Sensitive Fern. 

 Woodsire ilvensis — Common Downv Hair Fern. 

 W. obtusa — Common Chain Fern. 

 Osmunda regalis — Royal Fern. 

 O. cinnamomca — Cinnamon Fern. 

 O. Claytonia — Clayton's Flowery Fern. 

 Botrychium virginicum — Rattlesnake Fern. 



B. lunarife — Common Moonwort. 

 B. lunarioides — Tall Moonwort. 

 B. simplen — Dwarf Moonwort. 

 Ophioglosum vulgatum — Adder's Tongue Fern. 

 Adiantum pedatum — Maiden Hair P^ern. 

 Pteris aquilina — Common Bracken Fern. 

 Scolopendrium — Hart's Tongue Fern. 

 Asplenium trichomanes — Common Spleenwort. 

 A. ebeneum — Black- stalked Spleenwort. 



A. thelypteroides — Silvery Spleenwort. 

 A. Filix-faeminas — Lady Fern. 



