424 99. FiLiCES. 



ovate acute cut, segments oblong toothed. Cystea fragilis Sm., 

 N. 155. C. angustata E. B. S. 2/90?— /3. C. cynapifolia (Roth); 

 pinnules obovate cut, segments obovate toothed or retuse at the 

 end. C. fragilis E. B. 1587. — y- C- angustata (Sm.); pinnules 

 lanceolate acute cut, segments lanceolate-oblong cut, teeth acute. 

 N. 156. C. regia Roth. — The varieties are intimately connected. 

 — Rocks and walls, y. Craven and N. Wales. P. VII. 



2. C. dentata (Sm.) ; frond lanceolate bipinnate, pinnse ovate 

 or ovate-lanceolate, pinnules cordate-ovate or ovate blunt broad 

 below bluntly toothed or rarely pinnatifid. — E. B. 1588 (bad). 

 N. 154. C. fragilis Roth. — Clusters more marginal than in the 

 preceding species, ultimately confluent. Pinnae of young fronds 

 reflexed. In well-grown plants the pinnae are suddenly widened 

 to their full extent just above their narrow stalklike base. " Spo- 

 rules verrucate." — C. Dickieana (Sim, S. 22.) which has over- 

 lapping pinnae, broad blunt pinnules, and scattered clusters, 

 is a form of this plant found in a damp cave near Aberdeen. — 

 Rocks and walls. Breadalbane Mountains and Cumberland. 

 P. VII. E. S. 



[C alpina (Desv.); frond lanceolate bipinnate, pinnae ovate, 

 pinnules ovate deeply pinnatifid with broadly and shortly linear 

 segments partly cloven and slightly toothed at the end. — E. B. 

 163. — Fronds very much divided, but compact and close. — On a 

 wall at Low Layton, Essex. P. VII.] 



3. C. montana (Link) ; fronds triangular tripinnate, pinnae and 

 pinnules spreading, lobes pinnatifid with linear notched segments. 

 — S. 24. — Fronds in shape like those of Polypodium calcareum, 

 small, short, very finely divided. Lower pair of pinnse much the 

 largest ; their lower larger than their upper pinnules. Stipes long, 

 slender. Rhizome creeping extensively, black.. — Breadalbane and 

 Grampian Moimtains. P. VIII. ? S. 



[ Onoclea sensibilis is naturalized in one spot near Warrington. J 



7. PSEUDATHYRIUM NeWW,. 



1. P. aipesfre (Newm.) ; fronds lanceolate bipinnate, pinnae 

 contiguous, pinnules widest at their base acute pinnatiild with 

 serrate lobes. — S. 49.— Fronds suberect. Much like Athyrium 

 Filixfamina. — High mountain valleys. P. VII. VIII. S. 



2.1 P. flexile (Newm.) ; fronds Unear-lanceolate bipinnate, 

 pinncB distant, pinnules narrow at their base obovate bluntish ser- 

 rate. — JV. ed. 3. 203. — Fronds much less divided, narrow, spread- 

 ing horizontally. A doubtful species. — Glen Prosen, Forfar- 

 shire. P.VII.VlII. S. 



