Aspidium.'] 
CVIII. POLYPODIACEAC. 
585 
Windermere, Westmoreland. 1i. 8, 9. — This we have not seen; 
from Mr. Moore’s description it appears to be merely a luxuriant state 
of the last species, with the lower pinnules more developed and assum- 
ing the form of small pinna: ; their segments however, and the upper 
pinnules, are as in A. Filix-mas. 
9. A. rigidum Sw. (rigid S .) ; fronds lanceolate bipinnate 
glandular beneath, lower pinnae as long as those next them, 
pinnules narrow-oblong obtuse slightly pinnatifid contracted at 
the base the segments broad and rounded deeply 2 — 5-dentate 
(without spinulose points to the teeth), stipes and rachis chaffy, 
involucre persistent fringed with stalked glands. E. B. S. t. 
2724. Lastrea Presl: Newm. p. 191, 196. Lophodium Newm. 
ed. 3, p. 175, 180. 
On Ingleborough, and rocks above Ingleton and Settle, Yorkshire ; 
Arnside Knot, Westmoreland, abundant. 71. 7, 8. — Fronds 1 — 2 
feet long ; pinnae very numerous, closely set, of nearly the same width 
throughout (often widest in the middle), with numerous rounded 
lobes ; teeth 2 — 3 rarely more, broad and triangular. The involucre 
agrees with that of A. dilatatum a. in having a glandular margin, 
and in not being bent in under the sorus, but it is permanent, large, 
and conspicuously convex as in A. Filix-mas. It agrees also with 
this last in the oblique insertion of the pinna: on the rachis, so that 
they lie in different planes, but it differs in not having the lower 
pinna: gradually diminished. 
|| Involucre flat or nearly so. 
10. A. cristdtum Sw. (crested S .) ; fronds erect glabrous linear- 
lanceolate pinnate, pinute deeply pinnatifid or pinnate, pinnules 
plane, the segments oblong-ovate acutely serrate ; serratures 
mucronate or spinulose, involucres entire eglandulose fiat some- 
what permanent, scales of the stipes ovate obtuse usually 
(always?) with a slender point. — a. Ccdlipteris ; fronds linear, 
pinnas only pinnatifid, superior and inferior lowest pinnules 
about equal, serratures scarcely spinulose. E. B. t. 2125 (not 
t. 1949). Lastrea Presl: Newm. p. 203. Lophodium Callipte- 
ris Newm. ed. 3, p. 169. Polypodium Ehrli. — j3. uliginosum; 
fronds narrow linear-lanceolate, pinnae of barren ones as in a., of 
fertile ones more deeply divided almost pinnate at the base, 
superior and inferior lowest pinnules about equal, segments of 
the fertile ones with spinulose serratures. Polypodium L. (in 
part). Lastrea uliginosa Neivm. in Phyt. Lophodium Newm. 
ed. 3. — y. spinosum ; fronds oblong-lanceolate bipinnate, inferior 
lowest pinnule much longer than the superior one, serratures 
spinulose. Polypodium L. (in part). Asp. spinulosum Sw. ? : 
a. Brit. FI. ed. 7. Lastrea Bub. L. spinosa Newm. p. 209. 
Lophodium Newm. ed. 3, p. 157. 
a. Boggy heaths, rare. Near Holt, Lynn, Norwich, and Fritton, 
Norfolk; Ipswich and Westleton, Suffolk ; Oxton bogs and Bulwell 
c c 5 
