584 



CVIIL POLYPODIACE^. 



\_Aspidium, 



Belfast. 



truncate and auricled at the base on the tipper side, the one next 

 the main rachis somewhat larger than the rest, the mar^-Ins dis- 

 tinctly serrate and spinnlose, stipes and rachis chaffy, fructifi- 

 cations copious, E, B. 1. 1562 (bad), Polystichum Roth. 



Woods and hedge-banks In England and Ireland; rare in Scot- 

 land. 



4. A. anguldre Willd. {angular-leaved SS) ; fronds broadly 

 lanceolate bipinnate, pinnules thin and membranaceous plane 

 petioled ovate sublunate obtuse aristate obliquely truncate at 

 the base with a large auricle on the upper side, the margins 

 deeply serrate spinulose, the lowermost ones often deeply pin- 

 natifid, that next the main rachis scarcely larger than the rest 

 (excepting in var. /3.), stipes and rachis very chaffy, fructifica- 

 tions copious. Sm. E. FL v. iv. p. 291 ; E, B. S. t. 2776. Po- 

 lystichum Newm. A. aculeatum /3. Sm. : FL Br. p. 1122. A. 

 lobatum Willd. ? — ^. subtripinnate, pinnules, especially the 

 lower ones and the much larger one next the main rachis, dis- 

 tinctly pinnate. 



Woods and hedge-bants, frequent in England, as far north as 

 Yorkshire. N. Wales. Pease Bridge, Berwickshire. Colin Glen, 



ith the last. — This has generally been considered A 

 aculeatum by British botanists, and has hence only been viewed in 

 comparison with A, lobatum Sm., from which, at first sight, and in 

 essential character, it certainly appears distinct; but after a most 

 careful examination of numerous specimens, we are compelled to say 

 .that there is a third kind, the A, aculeatum of E. Fl,^ which does par- 

 take of the characters of the other two, and which some botanists 

 refer to A. lobatum^ and others as confidently to A. angulare. Hence 

 it appears to us they must all be united, or as done by Smith, they 

 must constitute 3 species. 



h 



r- 



** Involucre orbicular-reniform^ fixed by the sinus. Nephrodium Rich, 

 {in part), Br. Lastrea Bory, Presl. (Tab. IX. f. 4. c. d,) 



5. A. Oreopteris Sw. {Heath S.) ; fronds pinnate, pinn« 

 lanceolate pinnatifid glabrous resinose-glandulose beneath, the 

 segments lanceolate obtuse entire, lowermost ones longer, sori 



Polypodium Ehrh. : E. B. t. 1019. Lastrea Presl 



Mountainous countries, in heaths and dry pastures. Abundant in 

 Scotland, /wro/wcres small, indistinct. * 



^ 6. A, Thelypteris Sw. {Marsh S.) ; fronds pinnate, pinn^ 

 linear-lanceolate pinnatifid, and as well as the rachis, slightly 

 pubescent, the segments ovate acute entire, sori marginal "con- 

 tiguous at length confluent, "^ ' "" " — ^ 



marginal. 



Lastrea PresL 



Polypodium Z. : E 



Marshy and boggy places. Boot creeping. 



i 



M 



p' 



. 7. A. cristdtum Sw. (crested S.) ; fronds linear-lanceolate 



-^ 



