658 
CRYPTOGAMIA SCHISMATOPTERIDES. Osmunda. 
spectalilis. 
O. basilaris. Sprengel. aiiLs.p, l60. 
Icon. Schkuhr Jilic. t. 144. 
In low and swampy grounds : Canada to Virginia, and in 
the western territories. I/. June, July, v.v. This 
singular fern is about two feet high. 
4. O. frondibus bipinnatis, pinnulis oblongis obtusiusculis 
argute serrulatis basi truncatis inaequalibus, omnibus 
alternis, panicula bipinnata fructificante in apice fron- 
dis. — IVilld. sp. pi. 5. p. 98. 
0. regalis /3. Sp. pi. 1521. Mich. Ji. amer. 2. p. 273. 
Icon. Pluk. aim. t. 184.^. 4. 
In mountain swamps : Canada to Carolina. 1/ . July. 
V. V. A very elegant species. _ 
aureum. 
IV. FI L ICES. 
721. ACROSTICHUM. Gen. pi. 1625. 
1. A. frondibus pinnatis, pinnis alternis oblongo-lanceola- 
tis integerrimis, basi cuneatis aequalibus, omnibus 
acuminatis, superioribus fructificantibus. IVilld, sp. 
pi. 5. p. 116. 
Icon. Schkuhr Jilic. t. 1. Petiv.Jil. t.S.f.5. Plum, 
amer. t. 7. Pluk. aim. t. 288./. 2. 
In deep swamps near the sea-coast : Florida, 1/ . July. 
V. V. This is the largest of the North American ferns, 
the leaves being sometimes above five feet long. 
vulgare. 
722. POLYPODIUM. Swartz, synop. Jilic. 3. 
1. P. frondibus profunde pinnatifidis, laciniis lineari-lan- 
ceolatis obtusis crenulalis approximatis, superioribus 
sensim minoribus, soris solitariis, caudice paleaceo. 
IVilld. sp. pi. 5. p. 172. 
Icon. Schkuhr Jilic. /. 11. Plum.Jil. t. A.f. 2. 
On rocks and old rotten trees : Canada to Carolina. % . 
July. V. V. 
virginianum. 
2. P. frondibus profunde pinnatifidis, laciniis lanceolatis 
obtusis integerrimis approximatis, superioribus sensim 
minoribus, soris solitariis, caudice nudo. IVilld. sp. 
pi. 5. p. 174. 
, Icon. Petiv. Jilic. t. 7. /. 9. Plum. amer. t. 36. JUic. 
t-77- 
