I ^(> Filices. 



X. —SCOL OPENDRIUM. 



SCOLOPEN'DRIUM VULGA'RE (96). Hart's-tongue Fern. 7—8. 

 (1782) Fronds tufted \ — 2 ft. oblong-ligulate often cordate at the base, margin 

 waved. Shady places. 



XI. — C y^ TOPTERIS, 



CYSTOP'TERIS FRAG'ILIS (79). Bladder-fern. 7—8. Fronds 

 (1785)4 — 8 in. transparent lanceolate bipinnate, pinnae ovato-lanceolate, 

 pinnules variously toothed. Rocks and walls. 



XU.—ASPLENIUM. 



Sori oblong or linear dorsal, indusium similarly shaped attached to a 

 lateral vein and opening longitudinally towards the midrib of the pinnule. 



Ultimate pinnules with a distinct midrib, 677 



Ultimate pinnules without a midrib, ... A. Ruta-muraria. 



677 Stipes green, A. viride. 



677 Stipes dark purple, 678 

 678 Fronds triangular bi- or tri-pinnate, . . .A. Adiantum-nigrum. 

 678 Fronds simply pinnate, 679 



679 Fronds linear, pinnate thin oblong, , . A. Trichomanes. 

 679 Fronds lanceolate pinnate thick ovate, . . A. marinum. 



ASPLE'NIUM RUTA-MURA'RIA (105). Wall-rue Spleenwort. 

 (1775) 6 — 10. Frond i — 2 in. oblong or ovate irregularly bipinnate with 

 obovate rhomboidal or cuneate pinnules. Walls and rocks. 



Asple'nium vir'ide (41). Green Spleenwort. 6 — 9. Frond 6 — 12 in. 

 (1772) linear pinnate with a green stalk and roundish-ovate obtusely serrate 

 pinnae. Fig. p. 178. [G. {Scar, Austwick Scar.) 



ASPLE'NIUM ADIAN'TUM-NIGRUM (102). Black Spleenwort. 



(1770) 6 — 10. Frond 6 — 12 in. triangular bi- or tri-pinnate, pinnae triangular, 

 pinnules ovato-lanceolate \ — | in. petiolate deeply serrate, stipes dark 

 purple. Banks and walls. 



ASPLE'NIUM TRICHOM'ANES (108). Black or Maidenhair Spleen- 

 {1773) wort. 6 — 9. Frond 6 — 12 in. linear pinnate with a black stalk and 

 roundish-oblong crenate pinnae. Walls and rocks. 



Asple'nium mari'num (50). Sea Spleenwort. 6 — 9. Frond 3—10 in. 



(1771) coriaceous lanceolate pinnate, pinnae i — 2 in. obliquely ovate serrate 

 Sea-cliffs and caves. LG. Ci. 



