Scohpendrium.~\ cvin. polypodiacEjE. 
591 
** Involucre oblong, soon curved back like a horse-shoe, laciniate-fringed. 
Athyrium. 
10. A. Filix-fce'mina Bernli. ( short-fruited S., or Lady-fern ) ; 
fronds lanceolate bipinnate (sometimes only subbipinnate),pinnaj 
linear, pinnules lanceolate linear-oblong or ovate more or less 
decurrent inciso-serrate or pinnate, serratures 2 — 3-toothed. 
Aspidium Sw. : E. B. t. 1459 (not good). Athyrium Newm. 
p.237; ed. 3, p. 207. — a. incisum; fronds large dark green 
bipinnate, pinnules oblong-lanceolate distinct deeply pinnatifid, 
segments of lower ones incise and toothed partial rachis very 
slightly margined below each pinnule. Athyrium Roth. A. 
incisum Newm. p. 244 b ; ed. 3, p. 213 b. — (3. irriguum ; 
fronds smaller bright or pale green, bipinnate or subbipinnate, 
pinnules deeply incise or only crenate semidecurrent or decur- 
rent and forming a wing to the rachis. Aspidium irriguum 
Sm. : E. B. t. 2199. Athyrium Rbaeticum Roth. A. con- 
vexum Newm. p. 244 c ; ed. 3, p. 213 a. A. trifidum Roth. 
A. ovatum Roth. A. tnolle Roth. : Newm. p. 244 a ; ed. 3, p. 
213 c. A. Iatifolium Bab. 
Moist places, abundant. . 6, 7. — Of this species Mr. Moore 
gives descriptions of and names to 22 varieties besides 9 monstrosities ; 
we cannot distinguish more than the above two, and even these appear 
to us only two extremes between which there are numerous grada- 
tions ; usually our a. grows in a deep soil, not much in woods, but 
rather where it is exposed to the light, as among hedges, sides 
of ditches, and low thickets ; 0., where the soil is scanty, in the 
shade, and often on wet rocks in woods; both yield fronds with flat 
or convex fertile pinnules, occasionally from the same root. Our fi. 
is smaller and less divided, and has the pinnules often with a cuneate 
or ovate base ; whereas in a. the lower segments of the pinnules, 
particularly on the upper side, are so much larger than the others 
as to give the whole a triangular or hastate appearance ; in both the 
more flat the pinnules are, the more crowded they appear to be ; all 
these forms appear to us to depend on a greater or less luxuriance of 
the plant. 
8. Scolopendrium Sw. Hart’s-Tongue. (Tab X. f. 3.) 
Sori linear, transverse, on lateral nerves. Involucre double, 
occupying both sides of the sorus, opening, as it were, by a 
longitudinal suture. — Veins forked. — Named from the lines 
of fructification resembling the feet of a Scolopendra. 
1. S. vulgdre Sym. ( common II.) ; fronds simple oblong- 
ligulate acute heart-shaped at the base, stipes very scaly. E. 
B. t. 1150: Newm. p. 289, 292. S. officinarum Sw. Aspleuium 
Scolopendrium L. Phyllitis Newm. ed. 3, p. 271, 275. 
Shady hanks and rocks, in cold and damp situations. 7, 8. — 
Fronds from o' inches to 2 feet long. 
