660 
hy perl or ea. 
ilvensis , . 
cicutdrium. 
CRYPTOGAMIA FILICES. 
723. WOODSIA, Brown in linn, trans. 11. p. 173* 
1. W. frondibus pinnatis, pinnis tripartitis vel pinnatifido- 
incisis cuneiformibus obtusis dentatis subtus hirtis, 
soris solitariis demum confluentibus. — Brown l. c . 
cum icone. 
Polypodium hyperboreum. Willd. sp. pl.5. p. 197* 
Polypodium arvonicum. Smith fl. brit. 3. p. 1 1 15. 
Acrostichum ilvense. Huds. angi. 45 1. 
Acrostichum alpinum. Bolton filic. J6. t . 42. 
Acrostichum hyperboreum. LUjeblad act. holm . ] 
p. 201, t 8. 
Icon. Schkuhr JiUc. t. \ J. b. Pluk. phytogr. t. 89. 
Moris, hist. 3. s. 14, t. 3. f. 23. 
In the clefts of rocks : Canada and on the high moun- 
tains of Pensylvania and Virginia. I/. July. v. v. 
A small fern growing in large tufts, and covered with 
long brown chaffy hair. 
2. W, frondibus bipinnatifidis, laciniis oblongis obtusis in- 
ferioribus repandis, superioribus integerrimis subtus 
hirtis, soris submarginalibus demum confluentibus, 
stipite superne villoso. — Brown l. c . 
; Polypodium ilvense. Willd . sp. pL 5. p. 198. 
Polystichum Marantae. Roth Jl. germ. 3. p. 92. 
Acrostichum ilvense. Sp. pl. 1528. 
Icon. Schkuhr jilic. t. 19. FL dan. 391. 
On rocks : Canada to Virginia. Ij. . July. v. v. Re- 
sembles the preceding very much ; but the leaves are 
smaller divided and covered with fine woolly hair, not 
chaffy as in the other. 
724. ASPIDIUM. Swartz, synop. Jilic. 3. 
Nephrodium. Mich.Jl. amer. 2. p. 2 60. 
* Frondibus t ematis. 
1. A. frondibus ternatis, foliolis pinnatifidis, laciniis acu- 
minatis sinuato-pinnatifidis integerrimis, lateralium 
infima et exteriore lacinia elongata, soris serialibus. 
Willd. sp.pl. 5. p.2\5. 
Polypodium cicutarium. Sp.pl. 1549* 
Polypodium appendiculatura. Swartz. Jl. ind . occid. 3 . 
p. 1 677. 
Icon. Pluk. aim. t. 28g.f. 4. & t. 29 6.f. 2. 
On rocks in the mountains of Virginia, 1/ . +. 
