CRYPTOGAMIA— FILICES. Asplenium. 305 



and separating at the opposite margin, towards the next 

 midrib, or vein, of the leaf, leaflet, or lobe, not towards 

 the outer edge of the same. Caj)s. numerous, stalked, 

 globose; each of 1 cell, and 2 equal, hemispherical 

 valves, bound together by a transverse, jointed ring, 

 which when dry separates them by its elasticity. Seeds 

 numerous, roundish, very minute. 

 Herbaceous. Boot either tufted or creeping, blackish, with 

 strong fibres ; sometimes scaly. Fronds erect, mostly 

 stalked, either simple, or variously pinnate, or branchetl ; 

 notched or serrated, rarely entire ; generally of a firm 

 texture, and smooth, not scaly. Caps, brown, or tawny. 

 Cover pale, permanently straight, always having a rib 

 or vein between the edge, at which it separates from the 

 Ji'ond, and the outer margin of its lobe or leaflet, whether 

 the outline of such be complete or not. By this mark 

 Asplenium is always to be distinguished, with due atten- 

 tion, from Darea, of which there is no British species. 



1. A. Triclioinanes . Common Maidenhair Spleen- 

 wort. 



Frond linear, pinnate; leaflets roundish-ovate, crenate. 

 Midrib coloured, polished ; keeled underneath. 



A. Trichomanes. Liww.Sp.PZ. 1540. WiUd.v.b.?,2>\. Fl.Br.ll26, 



Engl. Bot. V. 8. t. 576. Hook. Lond. t. 156. Scot. p. 2. 155, 



Woodv. t. 204. Bolt. Fit. 22. t.\3. Fl. Dan. t.]\9. Bull. Fr. 



M85. Dicks. H. Sice. fasc.4. 17. Ehrh.Pl.Of.UO. Cri/pt.22L 

 A. n. 1 693. Hall. Hist. v. 3. 9. 

 Trichomanes. RaiiSyn.\l9. Fuchs. Hist. 796./. Ic.460.f. Matth. 



Valgr. V. 2. 543./. Corner. Epit. 925 . f. Cord. Hist. 1 70. f. 1 . 



Trag. Hist. 530./. Tillands. Ic. 77./ 

 T. mas. Ger. Em. 1146./. 

 T. sen Polytrichum officinarum. Bauh. Pin. 356. Moris, v. 3. 591. 



sect. 14. t. 3./. 1 0. Plum. Fil. pre/. 26. t. B./. 1 , Sibb. Scot. 



sect.2. 52. t. 3. f.3. 



/S. T. foliis eleganter incisis. Dill, in Raii Syn. 120. Tourn. Inst. 



539. ^ 315./. C. 

 Adiantum maritimum, segmentis rotundioribus. Phik. Almag. 9." 



Phyt. t. 72,. f. 6. 

 y. Trichomanes aliiid, foliis mucronatis profunda incisis. Sibb. Scot. 



sect.2. 52. t. 3./. 4. 



On shady rocks, and old walls, frequent. 



Perennial. May — December. 



Root of many fibres. Fronds several, tufted, linear, simply pinnate, 



VOL. IV. X 



