LASTREA. 525 



5. L. riy'ida (Presl) ; fronds triangular-lanceolate bipinnate 

 f/landitlar, pinnae triangular-lanceolate lowermost pair not smaller 

 than the second, pinnules oblong blunt lobed and serrate with 

 a narrow attachment, segments 2 5-toothed not spinulose, iiidu- 

 sium persistent fringed with stalked glands, stipe clothed with 

 long-pointed \-coloured scales. H. F. 16. E. B. 8. 2724. N. 

 191. Fronds erect, lanceolate with the lower pinnae rather 

 short and triangular, or triangular with the lower pinnae long; 

 upper pinnae narrow ; all pinuate. Pinnules truncate below. 

 Covered with minute stalked glands. Height 12 feet. Ingle- 

 borough, Arnside Knot, and near Settle. P. VII. VIII. E. 



0. L. cristdta (Presl) ; fronds linear-lanceolate or narrower 

 subbipinnate glabrous, pinnae short triangular-oblong pinnatifid 

 or pinnate lowermost pair not smaller than the second, pinnules 

 oblong blunt or rarely acute serrate attached by their ivhole width 

 and connected below lowermost lobed and sublripinnatifid and 

 superior and inferior nearly equal, stipe with broad ovate acute 

 ] -coloured (pale) scales. Fronds erect, 2 ft. high. Indusinm 

 without marginal glands. a ; fronds nearly linear, pinnae pin- 

 natifid, pinnules blunt ; barren fronds broader. H. F. 17. S. 10. 

 N. 203. j3. L. uliginosa (Newm.) ; fronds linear-lanceolate, 

 pinnae pinnate, pinnules acute, barren and late fertile fronds 

 lanceolate, pinnae subpinnate, pinnules blunt. Bogs and boggy 

 heaths, rare. P. VIII. ti. 



7. L. spinulosa (Presl) ; fronds oblong-lanceolate bipinnate 

 glabrous, pinnae triangular-oblong or -lanceolate lowermost pair 

 scarcely smaller than the second, pinnules ovate-oblong acute 

 incise-serrate with a narrow attachment inferior lowermost often 

 largest, stipe with ovate acute 1-coloured (pale) scales, rhi- 

 zome stout creeping. S. 12. N. 203. H. F. 18. Height 34 

 ft. ; fronds nearly erect. Upper pinnules narrowed and de- 

 current below. " Indusium without marginal glands. [Var. 

 decipiens (By.) has minute glands on the rachis and underside of the 

 pinna and the indusium dentate.] Marshy places and wet woods. 

 P. VIII. IX. E. S. I. 



8. L. dilatdta (Presl) ; frond triangular-lanceolate or -ovate 

 bipinnate, lower pinnae unequally triangular lowest pair not 

 shorter than the second, pinnules oblong with a narrow attach- 

 ment pinnatifid or pinnate inferior ones largest, segments spi- 

 nous-serrate, stipe clothed with long pointed scales with a dark 

 centre and diapnanou* margin, rhizome tufted. H. F. 19. L. 

 multiflora N. 215. Caudex usually erect. Fronds 2 4 ft. 

 high, arched, often drooping, convex, more or less clothed wiih 

 stalked glands when young ; on young or starved plants often 



