434 99. piLicEs. 



203.— P. rheticmn PI. Daia', 2607 ?— Stipe short. Fronds much 

 less di-yided, narrow, elbowed, spreading horizontally. Clusters 

 crowded at the base of the frond', fewer upwards. — Abundant in 

 Glen Prosen, Forfarshjre. P. VII. VHI. S. 



3. WooDs'iA B. Br. 



1. W. Alveri'sis- {^. Br.) ; frond . lanceolate hairy and chafify 

 bpneatji pilose, above, ^!;»j«-o5/o«j9 orofoiepinnatifid, lobes very 

 blunt nearly entire.-^-B. ' £. S. 26i6. N. 137.— Rhizome tufted. 

 Stipe jointed, Frond 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- vn.,, ,,, ; . ,. ', .„ ,,_ ,, ' . E. s. 



2. W. Tiypy-bdrea (R. Br.) ;' frond linear-lanceolate or oblong 

 pinnate glabrous or slightly hairy only henea.th., pinneetriangidar 

 pirmatifid or lobed, >lobes 3-^7 very blunt nearly entire. — il. B, 

 2023. . N. 143. , Acrosiichum ulpinum Bolt. t. 42.— Rhizome 

 tufted. Stipe jointed. Frond 1: — S inches long; pinnse mostly 

 alternate, a little longer than, broad ; pinnides 2 — 3 lines long. — • 

 Exposed alpine rocks.. Ben Lawers, Perthshire. Clogwyn y 

 Garnedd,,Snowdon,, P. VH. E. S. 



Tribe II. Aspidiece. 



4. . La's'irea Presl, 



' Lateral veins simple or forked. Cltisters on the simple veins or 

 , either or both branches. 



1. L. Thelyp'tteris (Presl); fronds pinnate, pinnse linear-lanceo- 

 late pinnatifid slightly downy but mthont gtandsy lobes oblong, 

 clusters sxHamax^-aaX.-^Aspidium Sm., N. 183. — ^Fronds lanceo- 

 late ; earlier barren with flat lobes ; later fertile with revolute- 

 edged lobes ; 2 or 3 lowest pairs of pinnae decreasing in size. 

 Lateral 'Veins alternate', forked; extending 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 piima,te, pinnse linear-lan- 

 ceolate pinuatifid glandidar beneath gradually decreasing from 

 about the middle of the frond to near the root, lobes oblong flat, 

 clusters marginal.-^^Sp«rf««m Sm., J3. B. 1019. jV. 187. — 

 Fronds reinarkably narrowed downwards, rising in a circle from 

 a tufted rhizome, fragrant when bruised. Lobes blunt, entire : 

 lateral' veins simple or foAed. 'Height 2 — 3 feet. Indusiuni 

 often scarcely distinguishable. — Mountain heaths. P. VII. 

 jSwect Mountain Ftiil. ' " E. S. I, 



