666 
CRYPTOGAMIA FILICES, 
pensylvanica. 
rhizophyllum. 
angustifoli- 
um. ■ 
eheneum. 
melanocau- 
lon. 
26. STRUTHIOPTERIS. Willd. in mag, ges, nat. fr. %. 
herl. ISOg.p. 100. 
1. S. frondibus sterilibus bipinnatifidis, laciniis integerri- 
mis obtusis, infima elongata acuta. JVilLd. sp. pi. 5, 
p. 289. 
Onoclea nodulosa. Schhihr filic. p. q6. 1. 104. 
In Pensylvania. Muhlenlerg. If., -f. Resembles 
S. germanica. 
727. ASPLENIUM. Swartz. synop.Jilic. p. 4. 
1. A. frondibus lanceolatis stipitatis subcrenatis, basi auri- 
culato-cordatis, apice longissimo lineari-filiforme radi- 
cante. Willd. sp. pi. 5 - p. 305. 
Icon. Pink. aim. t. 105 /. 3. Petiv. gazoph, t. 105./. 7. 
Moris, hist. 3. s. 14. i.5.f. 14. 
On wet shady rocks: Canada to Carolina. %. July. 
V. V. This fern is highly ornamental to rock-works, 
and very singular in its striking root at the elongated 
points of the leaves. 
2. A. frondibus pinnatis, pinnis aiternis, superioribus sub- 
oppositis, lineari-lanceolatis subrepandis, basi superiore 
truncatis, inferiore ieviter rotundatis. W illd. sp. pi. 5, 
p. 313. 
A. pycnocarpon. Sprengel. anleit. 3. p. 112. 
Icon. Schkuhr Jilic. t. O7. ^ 69. Moris, hist. 3. s. 14. 
t. 2. f. 25. 
In shady woods, on the banks of rivers : western parts 
of New York and Pensylvania. . July. v. v, A 
very elegant fern about a foot high. 
3. A. frondibus pinnatis, pinnis sessilibus lanceolatis serru- 
latis basi cordatis, sursum auriculatis. Willd. sp.pl. 5. 
p.32g. 
A. polypodioides. Swartz. sy?iop. filic. 7g. ^ 272. 
A. trichomanoides. Mich.fi. amer. 2. p. 265. 
Acrostichnm platyneuron., Sp. pi. 1527. excl. synon. 
Icon. Schkuhr fUic. t. 73. Pluk. aim. t. 287. f. 2. et 
t. 8g.f. 8. Moris, hist. 3. s. 14. t. 2.f. 12. 
In clefts of rocks : New England to Carolina. 11 . July. 
V. V. A small species. 
4. A. frondibus pinnatis, pinnis subrotundis obtusis crena- 
tis basi cuneatis, stipite discolore. Willd. mum. IO72. 
Willd. sp.pl. 5. p. 332. 
