FILICES. 
385 
/3. Glyder-Fawr, N. Wales. Falcon Clints, Teesdale, Durham, 
y. Ben Lawers. Mr. W. Wilson ! I have not seen the plant 
from Clogwyn y Garnedd nor Clova. P. VII. E. S. 
Tribe II. Aspidiece. 
4. Lastrea Presl. 
1. L. Thelypteris (Presl) ; fronds pinnate, pinna? linear-lanceo- 
late pinnatifid slightly downy but without glands : lobes oblong 
with revolute edges, sori marginal. — Aspidium Sm. E. B. 1018. 
Newm. 45. — Earlier fronds barren, later fertile, lanceolate, 2 or 3 
lowest pairs of pinnre decreasing in size. Lobes blunt entire, at 
first sight they appear acute on the fertile fronds from the revolute 
margins ; lateral veins alternate forked extending to the edge. 
Sori at length confluent. Rhizoma creeping widely. — Marshy 
and boggy places, rather rare. P. VII. VIII. Marsh Fern. 
2. L. Oreopteris (Presl) ; fronds pinnate, pinnae linear-lan- 
ceolate pinnatifid glandular beneath gradually decreasing from 
about the middle of the frond to near the root : lobes oblong, 
flat, sori marginal. — Aspidium Sm., E. B. 1019- Newm. 47. — 
Fronds remarkably narrowed downwards, rising in a circle from 
a tufted rhizoma, fragrant when bruised from the numerous 
glands on their under surface. Lobes blunt, entire: lateral veins 
simple or forked. Height 2 — 3 feet. The indusium is often 
scarcely distinguishable when the plant has all the appearance of 
a Polypodium. — Mountain heaths. P. VII. Sweet Mountain 
Fern. 
3. L. Filix-mas (Presl) ; fronds bipinnate, pinnules obtuse and 
serrated, sori near the central nerve, lateral nerves forked.— Aspi- 
dium Sm., E. B. 1458. Newm. 50. — Fronds only slightly nar- 
rowed downwards and the lowest leaflet of considerable size, 
rising in a circle from the tufted rhizoma. Lobes usually a little 
combined at the base. Stipes and rachis nearly glabrous, yellow, 
or densely clothed with purple scales. Indusium very persistent. 
Height 3—4 feet.— Woods and banks. P. VI. VII. Male 
Fern. 
4. L. cristata (Presl) ; fronds linear-oblong almost doubly 
pinnate, pinnas short triangular-oblong pinnatifid, pinnules ser- 
rated the lowermost lobed and almost pinnatifid, lateral nerves 
of the lobes with several branches. — Aspidium Sm., E. B. 2125. 
Newm. 53. — Fronds long and narrow, quite erect, from a tufted 
rhizoma, broad at the base. Lower leaflets almost doubly pin- 
natifid. Stipes very long, with a few large brown scales at the 
base. Lateral nerves with numerous branches in the Holt plant, 
fewer in that from Oxton. Height about 2 feet. — Bogs and 
s 
