hexagonopterum, Michx. 
dryopteris, Linn, 
incanum, Wiild. 
I--\ Allosorus, Bemhardi. Rock-brake 
atropurpurene. Gray 
Pteris, Linnaeus, Brake 
aquilma, Linn. 
Adianthum, Linn. Maidenhair 
pedaturn, Linn, 
Cheilanthes, Swartz. Lip Fern 
vestita, Wind 
Cociplosorus, Link 
rhizophullus, Link, Walking leaf 
Asplenium, Linnaeus 
trichomanes, Linn, 
thelypteroides, Michx. 
filix-foemina, R. B. 
Dicksonia, L'Hertier 
punctllcbula. Hook 
Cystopteris, Bernhardi 
fragilis, Bernh. 
Aspidiuni, Swartz. 
acrostichoides, Swartz 
Onoclea, Linnaeus. 
sensibilis, Linn. Sensitive Fern. 
Osmunda, Linnaeus 
spectabilis, Wind 
Claytoniana, Linn. 
Botrychium, Swartz. 
lunarloides, Swartz. Moonwort 
Virginicum, Swartz. 
