GRYPTOGAMIA FILICES, Aspidium, 
601 
** Frondilus pinnatis. 
2. A. frondibus pinnatis, pinnis lanceolatis falcatis acutis acrostichoides* 
ciliato-serratis, basi superiore mucronato- auriculatis, 
inferiore cuneatis, superioribus fructificantibus mino- 
ribus, stipite rachique paleaceis, soris solitariis demum 
confluentibus. Willd. sp. pL 5. p. 225. 
A. auriculatum. Schkuhr JiLic. 31. f30. exci, synon. 
JSIephrodiUm acrostichoides. Midi Ji. amer. 2. p. 267 , 
On rocks, in shady low places : New England to Caro- 
lina. June — Aug. v.v. Resembles iV. a wricM- 
latum. 
Frondilus suhbipinnatis ; indusiis dimidiatis renifor- 
mibus. 
3. A. frondibus pinnatis, pinnis lineari-lanceolatis pinnati- riovebora- 
fidis, laciniis oblongis obtusiusculis subintegerrimis cense^ 
ciliatis, soris marginalibus, stipite laevi. — iFilld. sp. 
pl.5.p.24S, 
A. thelypierioides. Swart%. synop. Jilic. 57 • 
Nephrodium thelypterioides. Midi. fi. amer. 3. p. 267* 
Poly podium noveboracense. tSp. pl. 1552. 
Icon. Schkuhr fiiic. t. 46. 
On river sides and the banks of ditches and ponds : Ca- 
nada to Carolina. If . July. v. v. 
4. A. frondibus pinnatis, pinnis lineari-lanceolatis pinnatifi- Thelyptcris. 
dis glabris, .laciniis ovatis acutis integerrimis, soris 
marginalibus contiguis demum confluentibus. Willd. 
sp. pl. 5. p. 249. 
Polypodium Thelypteris. Mant. 505. 
• Polystichum Thelypteris. Roih ft. germ. 3. p. 77. 
Acrostichum Thelypteris. Sp.pl. 1528. 
Icon. Schkuhr JUic, t, 52. FI. dan. 76O. Engl. hot. 
1018. 
Ill low grassy fields and swamps : Canada to Virginia, 
If . July. V. V. It is very seldom found with fructi- 
fications 5 the leaves are smaller than in the pre- 
ceding. 
-5, A. frondibus lanceolato-ovatis glabris pinnatis, pinnis cristatum. 
subcordato-oblongis pinnatifidis,; laciniis oblongis ob- 
tusis dentato-serratis, stipite paleaceo. — ‘Willd. sp. 
pl. 5. p. 252. 
Polypodium cristatum, Sp.pl. 1551, 
Icon, Schkuhr Jilic. t. 37 . ft/zd. actdiolm. IJ^7. l- 9- 
