446 100. HLicEa. 



zome tufted. Stipe jointed. IVond 1 — 5 inches long ; pinnse 

 4 — 6 lines long, mostly opposite. — Exposed alpine rocks. Glyder 

 Fawr, N. Wales. Falcon Glints, Durham. White Combe, 

 Dumfries. P. VII. E. S. 



_ 2. W. hyperhdrea (R. Br.) ; frond linear-lanceolate or oblong 

 pinnate glabrous or slightly hairy only beneath, ^e»?!« triangular 

 pinnatifid or lobed, lobes 3 — 7 very blunt nearly entire.— .E. B. 

 2023. H. F. 7. N. 143. Acrostichwm alpinmn Bolt. t. 42.— 

 Rhizome tufted. Stipe jointed. Frond 1 — 3 inches long ; 

 pinnse mostly alternate, a little longer than broad; pinnules 

 2 — 3 lines long. — Exposed alpine rocks. Ben Lawers, Perth- 

 shire. Clogwyn y Garnedd, Snowdon. P. VII. E. S. 



Tribe II. Aspidiem. 



4. Las'ieba Presl. 



* Lateral veins simple orforTced. Clusters on the simple veins or 

 either or both branches. 



1. L. Thelyp'teris (Presl) ; rhizome slender far-creeping, 

 fronds pinnate, pinnas linear-lanceolate pinnatifid slightly downy 

 but without glands, lobes oblong, clusters submarginal. — H. F. 

 13. N. 183. — Fronds lanceolate; earlier barren with flat lobes ; 

 later fertile with revolute-edged lobes ; 2 or 3 lowest pairs of 

 pinnsB decreasing in size. Lateral veins alternate, forked, 

 extending to the edge. Clusters at length confluent, midway 

 between the midrib and edge. Height 6 — 8 inches. — Marshy 

 and boggy places. P. VII. VIII. Marsh-Fern., E.S.I. 



2. L. Oreop'teris (Presl) ; rhizome thick short, fronds pinnate, 

 pinnse linear-lanceolate pinnatifid glandular beneath gradually 

 decreasing from about the middle of the frond to near the root, 

 lobes oblong flat, clusters marginal. — S. F. 14. F. B. 1019. 

 N. 187. — Fronds remarkably narrowed downwards, rising in a 

 circle from a tufted rhizome, fragrant when bruised. Lobes 

 blunt, entire ; lateral veins simple or forked. Height 2 — 3 feet. 

 Indusium often scarcely distmguishable. — Mountain heaths. 

 I'. Vn. Sweet Mountain-Fern. E. S. I. 



** Lateral veins branched or forked. Cluster upon the first upper 

 lateral veinlet. 



'6, L. FUix-mas (Presl) ; fronds lanceolate subbipinnate, pinnse 

 Unear-lanceolate lowermost pair rather smaller than the second, 

 pinnules oblong blunt or acutish serrate (not spinulose) attached 



