CVIII. POLYPODIACE-ffi. 
583 
Aspidium.~\ 
copious. E.B. t. 1562 (bad). Polystichum Roth : Newm. ( in 
part). 
Woods and hedge-banks in England and Ireland ; rare in Scot- 
land. 7. — This is exactly intermediate between the last and 
the next species, and so partakes of the characters of both that by 
some botanists it is referred to A. lobatum, by others to A. angvlare. It 
appears to us that all of them must be united as in Mr. Bentham’s 
Handbook, or constitute three species, as done by Smith. 
4. A. anguldre Willd. (angular-leaved S.) ; fronds flexible 
broadly lanceolate bipinnate, pinnules subrigid plane stalked 
ovate sublunate obtuse or oblong and acute aristate obliquely 
truncate at the base with a large auricle on the upper side, the 
margins deeply serrate spinulose,the lowermost onesoften deeply 
pinnatifid or pinnate, stipes and rachis very chaffy, sori copious. 
— a. pinnules next the main rachis scarcely longer than the rest 
subpinnate. E. B. S. t. 2776. Polystichum Newm. p. 174; ed. 3, 
p. 118. A. lobatum Willd.? — subtripinnate, pinnules espe- 
cially the lower ones and the much larger one next the main 
rachis distinctly pinnate. Newm. p. 182; ed. 3, p. 121. 
Woods and hedge-banks, frequent in England, as far north as 
Yorkshire and Westmoreland. N. Wales. Pease Bridge, Berwick- 
shire ; Skelmorlie, Ayrshire. Colin Glen, Belfast. If. 7. 
** Involucre orbicular-reniform , attached by the sinus. Nephrodium 
Rich, (in part). Lastrea Bory. (Tab. IX. f. 4. c. d .) 
Lateral veins of the pinnules or segments simple or forked. Sori on 
the simple veins, or on either or both branches of the forked ones. 
5. A. Thelypteris Sw. (Marsh-fern ) ; fronds pinnate, pinna 
linear-lanceolate pinnatifid and as well as the rachis slightly 
pubescent, the segments ovate acute entire, veins nearly all 
forked, sori parallel to the margin contiguous ultimately con- 
fluent. Polypodium L. Lastrea Presl : Newm. p. 183, 186. 
Hemestheum Newm. ed. 3, p. 123, 128. 
Marshy and boggy places. Not uncommon in England. Various 
places in Ireland. Rare in Scotland. V . 7, 8. — Rhizome creeping. 
Frond pubescent but not glandular. The sori, if examined when 
young, are half way between the midrib and the margin ; but when 
old, they cover nearly the whole under side of the segments or appear 
marginal from the margin becoming recurved. 
6. A. Oreopteris Sw. (Heath S., or Mountain- fern) ; fronds 
pinnate, pinnm lanceolate pinnatifid glabrous glandular beneath, 
the segments lanceolate obtuse entire, lowermost ones larger, 
veins nearly all simple, sori submarginal. Polypodium Ehrh.: 
E.B. t. 1019. Lastrea Bory: Newm. p. 187, 190. L. mon- 
tana Newm. ed. 3, p. 129, 133. 
c c 4 
