666 
CRYPTGGAMIA filices. 
pensylvanica. 
rhizophyllum. 
angustifoli- 
um. 
ebeneum. 
melanocau- 
lon . 
26. STRUTHIOPTERIS. mild, inmag.ges. nat.fr. %. 
her l I 8 O 9 . p. l 6 ' 0 . 
1. S. frondibus sterilibus bipinnatifidis, laciniis integerri- 
mis obtusis, infima elongata acuta. Willd . sp. pl. 5. 
p. 289- 
Onoclea nodulosa. Schkuhr filic. p. 0)6. 1. 104. 
In Pensylvania. Muhlenberg . 1/. -f. Resembles 
S. germanica. 
727. ASPLENIUM. Swartz, synop. filic. p. 4. 
1. A. frondibus lanceolatis stipitatis subcrenatis, basi auri- 
culato-cordatis, apice longissimo lineari-filiforme radi- 
cante. Willd. sp. pl. 5 p. 305. 
Icon. Pluk. aim. t. 105. f. 3. Peliv. gazoph. t. 105. f. 7. 
Moris, hist. 3. s. 14. t.5.f. 14. 
On wet shady rocks: Canada to Carolina. 1/. 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 alternis, superioribus sub- 
oppositis, linearblanceclatis subrepandis, basi superiore 
truncatis, inferiore leviter rotundatis. IV illd. sp. pl. 5. 
p. 313. 
A. pycnocarpon. Sprcngel. avleit. 3. p. 112. 
Icon. Schkuhr flic. i. 6/. & 69. Moris, hist. 3. s. 14. 
t. 2. f. 25. 
In shady woods, 00 the banks of rivers : western parts 
of New York and Pensylvania. 2£. July. v.v. A 
very elegant fern about a foot high. 
3. A. frondibus pinnatis, pinnis sessilibus lanceolatis serru- 
latls basi cordatis, sursum auriculatis. Willd. sp.pl . 5. 
p.329. 
A. polypodioides. Swartz, synop. flic. 79- & 2/2. 
A. trichomanoides. Micli.fl. amer. 2. p. 2 65. 
Acrostichum platyneuron. Sp. pl. 1527- exci, synon. 
Icon. Schkuhr flic. t. 73. Pink. aim. t. 287- f. 2. et 
t. 89./ 8. Moris, hist. 3. s. 14. t. 2,f 12. 
In clefts of rocks : New England to Carolina. 1/ . July, 
v. v. A small species. 
4. A. frondibus pinnatis, pinnis subrotundis obtusis crena- 
tis basi cuneatis, stipite discolore. Willd. enurn. 1072 . 
Willd. sp. pl. 5. p. 332. 
