422 
99. FILICES. 
spreading horizontally. Clusters crowded at the base of the 
fi'ond, fewer upwards. — Abundant in Glen Prosen, Forfarshire. 
P. VII. vin. s. 
3. WooDs'iA B. Br. 
1. W. ilven'sis (R. Br.); frond lanceolate haiiy and chaffy 
beneath pilose shove, pinruB oblong or ovate pinnatifid, lobes very 
blunt nearly entire.— i". B. S. 2616. K 1.S7.— Rhizome tufted. 
Stipe jointed. Frond 1—5 inches long ; pinnje 4 — 6 lines long, 
mostly opposite. — Exposed alpine rocks. Glyder Fawr, N. 
Wales. Falcon Glints, Durham. White Combe, Dumfries. 
P. vn. E. s. 
2. W. hyperh6rea (R. Br.) : fi-ond linear-lanceolate or oblong 
pinnate glabrous or slightly haiiy only beneath, triangular 
pinnatifid or lobed, lobes 3 — 7 veiy blunt nearly entire. — E. B. 
2023. N. 143. Acrostichum alpiymm Bolt. t. 42. — Rhizome tufted. 
Stipe jointed. Frond 1 — 3 inches long; pinnje mostly alter- 
nate, a little longer than broad ; pinnules 2 — 3 lines long. — Ex- 
posed alpine rocks. Ben Lawers, Perthshire. Clogw^Ti y 
Gamedd, Snowdon. P. VIE. E. S". 
Tribe II. Aspidieee. 
4. Las'trea Presl. 
* Lateral vehis simple or forked. Clusters on the si?nple veins or 
either or both branches. 
1. L. TAe/j/^j '<m« (Presl); 'fronds pinnate, pinnselineai'-lanceo- 
late pinnatifid slightly downy but without glands, lobes oblong, 
clusters submarginal. — Aspidium Sm., N. 183. — Fronds lanceo- 
late ; earlier barren with flat lobes ; later fertile with revolute- 
edged lobes; 2 or 3 lowest pairs of pinnse decreasing in size. 
Lateral veins alternate, forked, extendmg to the edge. Clusters 
at length confluent, midway between the midrib and edge. Rhi- 
zome creeping. Height 6—8 inches. — Marshy and boggy places. 
P. VII. VIII. Marsh Fern. E. S. I. 
2. L. Oreop'teris (Presl); fronds pinnate, pinnte linear-lan- 
ceolate pinnatifid glandular beneath gradually decreasing from 
about the middle of the frond to near the root, lobes oblong 
flat, clusters marginal. — Aspidium Sm., E. B. 1019. N. 187. — 
Fronds remarkably nan-owed downwards, rising in a circle from 
a tufted rhizome, fragrant when bruised. Lobes bkmt, entii'e ; 
lateral veins .simple or forked. Height 2 — 3 feet. Indusiuni 
often scarcely distinguishable. — Mountain heaths. P. VII. 
Sweet Mountain Fern. E. S. I. 
