FILICES. 
ted and blunt. These lobes produce the brown round _ Filices._ 
in mbagonin, on each side of the ““\—" 
ote by S , (Tab. $. Anleit:) exhibits the 
= character of this genus. 
ed by Cavanilles (Ann. Sc. Nat. t. 41. mala.) as an As- 
plenium. 
(6.) Ceterach. (Willd, 1958.) 
les in transverse linear 
_ The Ceterach has been so ently described under 
: 
: 
pumila. Besides the above, he observes, « huc perti- 
Acrostichum marante, Pteris trichomanoides, et 
r 
E 
Es 
i 
close inquiry into the structure of the fruit 
hich are i 
EE 
| a 
I 
u 
ga 
ES 
Bye 
& 
& 
> 
RE 
ES 
E 
H 
i 
Sronde lineari lanceolata, acuta, pinnata, 
disposed 
unwearied investigation of individuals,—that boldt 
535 
of capsules 
middle fasciculus of the fronds, which alternating on each 
side of the stem, extend from a span to a foot in length. 
The most remarkable variety is that noted by Bolton, 
in which the pinne are formed into branches resembling 
the maternal frond. This variety is distinctly, but 
coursely, figured by Bolton, (tab. 2.) It is also 
by Morison, (sect. 14. tab. 2.) under the name of P. Cam- 
bro-Britannicum, pinnulis laciniatis. This is like some 
other ferns, well adapted to adorn rocks surrounded with 
shrubs. (2.) Polypodium ? (an Athyrium?) fontanum, 
a 7 sa i 3 neue erase 
obtusiusculis pinnatifidis crenatis supra glabris, (Sm. Flor. 
Brit. 3.) Smith inks this species Siatbes Bes the 
Fn oo gy fontanum of Swartz. (3.) deh jy Sei 
(Willd. Sp. Pl. 131.) The frond is pinnated, the pinnaz 
lanceolate, pinnatifid and united at the base, the un- 
der pinne bent back. This ies is found in La; 
land, and in the woods of most parts of Europe. (4.) P. 
dryopteris, (Fl. Brit. 5.) This species is the tender 
three-branched P. (Eng. Bot.616.) (5.) P. cal- 
careum, Boer Sp. Pl. 156. and Fl. Brit.) In this 
species ternate bipinnate frond is erect, and more 
rigid ; in other respects it resembles the last. It is the 
rigid three-branched polypody, and is figured by Bol- 
ton, as P. dryopteris, (53 tab.) Our British species 
then of this genus are very limited ; but, indeed, we 
nearly the whole of the European species yet 
own. 
In order, however, to give some idea of the very dis- 
similar habit of some foreign ies of this extensive 
assemblage, it may be remarked, that the P. lycopo- 
doides, (Willd. Sp. Pl. 12.) possesses entire eh a ed 
fronds, and an = ste ing stem, covered with 
scales, from which it has its name ; although it 
vr ut Areye resemblance to a ay moana Plumier, 
mer, tab, 42.) gives an expressive figure of it, under 
the ple It ar i cervina scandens. Itabounds 
in the woods of all the West Indian Islands. The P. 
linear lan- 
on the under side with white woolly down. The P. 
leniosum, ype 9 _m discovered by Hum- 
and in South America, near Caripe. 
is fern are also linear, little more than 
half an inch broad, and extending to the length of two 
P. 
Shee Mateos spetion R Perhaps, os their 
5 | i as congeners of a genus distinct from 
the ee 
. aureum,; and others 
the P. dulce, P. decumanum, and other kindred spe« 
cies. As to the P, h , (128,) and P, ilvense, 
(129,) it is evident must be excluded from this 
genus, if we attend to the valuable memoir of Brown, 
published in the eleventh volume of the Linnean Trans« 
actions: (p. 170.) in which he has demonstrated the true 
nature of these singular ferns, To the ies de- 
scribed in the present edition of the Sp, Plant. (1810,) 
six others hi unknown are by Brown, 
(Prod, Flor. Nov, Holl. 145, 146.) (1.) P. confluens, 
