CRYPTOGAMIA FILICES. Aspidium. 
66l 
** Frondihus pinnatis. 
2. A. frondihus pinnatis, pinnis lanceolatis falcatis acn\is acrostichoides. 
ciliato-serratis, basi superiore mucronato-auriculatis, 
inferiore cuneatis, superioribus fructificantibus mino- 
ribus, stipite rachique paleaceis, soris solitariis demurn 
coufluentibus. IVilld. sp. pi. 5. p. 225. 
A. auriculatum. Schkuhr Jitic, 31. /. 30. excl. synon. 
JSiephrodium acrostichoides. Mich ji. amer. 2. p. 267. 
On rocks, in shady low places : New England to Caro- 
lina. 1/ . June — Aug. v. v. Resembles N. auricu- 
latum. 
* Frondihus sulbipinnatis ; iudusiis dimidiatis renifor- 
mibus. 
3. A. frondihus pinnatis, pinnis lineari-lanceolatis pinnati- 
fidis, laciniis oblongis obtusiusculis subintegerrimis 
ciliatis, soris marginalibus, stipite lasvi. — IVilld. sp. 
pi. 5. p. 248. 
A. thelypterioides. Swartz. synop.j\'ic. 57- 
Nephrodium thelypterioides. Mich. ft. amer. 2. p. 26J. 
Polypodium noveboracense. Sp. pi. 1552. 
Icon. Schkuhr jilic. t. 46. 
On river sides and the banks of ditches and ponds : Ca- 
nada to Carolina. ”}/ . July. v. v. 
4. A. frondihus pinnatis, pinnis lineari-lanceolatis pinnatifi- 
dis glabris, laciniis ovatis acutis integerrimis, soris 
marginalibus contiguis demum confiuentibus. Willd. 
sp. pi. 5. p. 249. 
Poly podium Thelypteris. Mant. 505. 
Polystichum Thelypteris. jRoth ft,, germ. 3. p. 77. 
Acrostichum Thelypteris. Sp.pl. 1528. 
Icon. Schkuhr Jilic. t. 52. FI. dan. 760. Engl. hot. 
1018. 
In low grassy fields and swamps ; Canada to Virginia. 
11 . July. V. V. It is very seldom found with fructi- 
fications j the leaves are smaller than in the pre- 
ceding. 
5. A. frondihus lanceolato-ovatis glabris pinnatis, pinnis 
subcordato-oblongis pinnatifidis, laciniis oblongis ob- 
tusis dentato-serratis, stipite paleaceo. — IVilld. sp, 
pi. 5. p. 252. 
Poly podium cristatum. Sp.pl. 1551. 
Icon. Schku ^ Jilic. t, 37 . Afzel. act. holm, 178/. t. Q. 
novebora^ 
ceme. 
Thelypteris. 
crisiatum. 
