PLend.cr. 1. FILICES. 13. Woodsia. 17 



j3. minor. Frond very slender ; lobes roundish, confluent, 

 barren. 



Filix foemina q. Filicula saxatilis ramosa maritima Plukeneti, Rail Sm. 

 125, 3. 



On moist walls, but when the roots extend to the ground, 

 they throw up the common variety, Dillen in Ray. 



XII. 12. ADIANTUM. Theophrastus. Maidenhair, 

 Sori in round, distinct spots. 



Adian turn font anum, Spring maidenhair. 



Frond bipinnate; leaflets obovate, cuneate; fertile lobes 

 terminating in a linear oblong sorus ; sterile lobes serrate. 



Capillus Veneris verus, Ger. em. 1143 ; Raii Syn. 123, 1. 



Adiantum verum sive Capillus Veneris verus, Park. 1049. 



Adiantum Capillus Veneris, Lin. S. P. 1558. 



Adiantum fontanum, Sal. Prod, 



A. cuneifolium, Stokes B. M. M. 4, 612. 



True maidenhair. 



Rocks and moist walls ; perennial ; May to September. 



Root fibrous; fronds sometimes a foot high, upright, 

 spreading, handsome, smooth ; stipes and rachis very smooth, 

 shining, dark purple ; lobes largish, fanshape, streaked, nar- 

 rowed at the base, outwardly lobed, cut, rounded ; invo- 

 lucra kidney-shape, flattened, at first pale, but turn black. 



H. Cyathe2E. Sori globular; involucra more or less 

 cupshaped, superficial ; capsules generally attached to an 

 elevated receptacle within the cup. 



XIII. 13. WOODSIA. Brown.Lin.Tr.il, 173. Hairfern. 

 Sori dorsal, roundish; z/zfoZz/cra membranous, cupsh ape, 



opening at the edge which is fringed with filiform processes; 

 capsules pedicelled ; receptacle none. 



Woodsia alpina. Alpine hairfern. 



Frond pinnate ; leaflets triangular, oblong, inciso-pinna- 

 tifid; lobes not nicked, the lower ones produced at the 

 base ; capsides few. 



Filix alpina, pedicularis rubrae foliis subtus vlllosis Lliwyd, Raii Syn. 

 118, 1. 



Acrostichum alpinum Bolt. Fit. 76. 



A. Ilvense, Huds. 451. 



Polypodium Arvonicum, With. 774. 

 VOL. II. C 



