Ol'd. 1.] CRYPTOGAMIA FILICES. 213 



segments lanceolate, bluntish ; lowermost pinnatifid ; upper gra- 

 dually smallest ; terminal ones large, undivided. 

 Heaths & commons, abund. If. . 7. Fr. 1 — 6 f of a light bright gr. 

 the margins revolute, sheltering the linear masses of tawny caps. 

 2. P. crispa, 17. 1160. (Curled, or Rock, Brake.) Frond twice or 

 thrice pinnate ; barren leaflets wedge-shaped, cut ; fertile ellip- 

 tic-oblong, obtuse, convex. — Cryptogram ma crispa, Br, Fl. 

 Stony mount. If. 7. About a span high, bright pea green. 



470. ADlANTUM. Maidenhair. 



1. A. Capillus Veneris, 22. 1564. (True M.) Frond doubly com- 

 pound ; leaflets alternate, wedge-shaped, lobed, on capi! lor " 

 stalks. Covers transversely oblong. 

 Moist rocks, chiefly in the S. W., very rare. 11. 5 — 9. A most 

 elegant fern, 6 — 12 in. Stalks ultimately quite capillary, whence 

 the name. 



All. WoODSIA. Woodsia. 



1. W. ilvensis, Suppl. 2616. (Oblong W.) Leaflets oblong, deeply 



pinnatifid. with oblong segments. 

 Alp, rocks, very rare.l£. 7 — 9. 3 — 5 in. Stalk brown, elastic i- wiry. 



2. W. hyperborea, Folypodium hyperboreum, 29 ; 2o23. (Rounded 



L. W.) Leaflets bluntly triang-n!- p; liria tifid, with rounded seg. 

 :»e rocks, very rare. i/. 6. 2—4 in., more rusty. Stalk less 

 elastic. Leafl. shorter, rounder, and broader at the base. 



472. TRICHoMANES. Bristle-fern. 



1. T. foerwta/^Hymenophyllum alatum, 20. 1417. (Short-styled B.) 

 Fiond thrice pinnatifid, lobed, smooth; segments linear, entire. 

 Stalk winged. Covers oblong. Common receptacles at first but 

 slightly prominent. 

 Wet rocks, very rare ; chiefly in the S. of Irel. If.. 5,6. Fr. 4—5 in. 

 membranous, deep green. 



473. HYMENOPHyLLUM. Filmy-fern. 



1. H. Tunbridgense, 3. 162. (Tunbridge F.) Fronds tender, pin- 

 nate ; pinna? distichous, vertical, pinnatifid; the segments linear, 

 undivided or 2-cleft, and, as well as the axillary, solitary, nearly 

 orbicular, compressed involucre, spinulose-serrate. Midrib 

 strongly veined. 

 Moist rocks, among moss, in mount, distr. If. 5,6. Tender and 

 delicate. Pinna on the same plane with the winged midrib. 



*2. H. Wilsuni, Suppl. 2686. (Scottish F.) Fronds rigid, pinnate ; 

 pinna' recurved, subunilateral, pinnatifid ; the segments linear, 

 undivided or two-cleft, spinulose-serrate. Involucres axillary, 

 solitary, ovate, swollen, entire. Midrib only slightly margined 

 towards the extremity. 

 Wet rocks, N. of Engl, and Wales. Abundant in the mount, parts 



