Pki 



■ \ 



^' I AspUnium.'] CVIII. POLYPODIACEiE. 587 



leno'tliened, extremity, which points towards the apex of the 



segment. — Veins forked. — Name : compounded of KvariQ^ a 



fei^n, 



^%al 1. C. frdgilisBernh. (brittle B.); fronds broad lanceolate bi- 



^^\^^ 1 pinnate, pinnse ovate or lanceolate variously toothed or lacini- 



^^^^^tit I ate or pinnatifid the segments more or less acute entire or again 



^^S^a- toothed, sori scattered more or less distant sometimes crowded 



^^^^i\ End almost confluent, rachis winged. — a.fragilis; fronds de- 



^%H compound pale green, sori rather large generally crowded, in- 



^^^^^' 1 volucres usually acuminate conspicuous. Cystea Sm. E. FL 



■^* Cyathea -E. J5. t. 1587. — /3. dentata; fronds bipinnate, pinn^ 



^s ti, I ovato-lanceolate, pinnules ovate-obtuse bluntly and unequally 



[i^ents I toothed rarely pinnatifid. C. dentata HooL Br.FL ed. 5, 



'Scent 1 P- 441. Cyathea E. B. t. 1588. Cystea angustata Sm. : E. FL 



bWj I Pol. Kha^ticum Dicks, Cyathea fragilis /3. Sm. — y. Dickieana; 



E.B. pinnse and pinnules much broader and overlapping each other. 



m bi. C. Dickieana ; Sim, Gard. Journ. p. 308. ; Newm. Brit, Ferns, 



Villi: ed. 3. p. 93. with wood-cut. 



tatum j Rocks and walls, in the mountainous parts of G. Britain, — ^. 



■ Brit, more abundant in England and Wales. — 7. Sea-cave near Aber- 



. — y. ' deen. Dr, Dickie, 



often 



astrea 

 lisecii 



ml in 



2. C. alpina Desv. (laciniate B.); fronds tripinuate, pinnules 

 confluent ovate-oblong pinnatifid rather spreading, the seg-' 

 ments broadly and shortly linear obtuse, with 2 or 3 blunt 

 erect teeth, rachis winged. Aspidium Siv. Cystea regia Sm. : 

 E, FL (excL the alpine stations). Cyathea incisa -B. B. t. 163. 



On a wall (since destroyed) at Low Layton, Essex, plentiful, — 

 Having received authentic specimens of the Layton plant from Mr. 

 E. Forster, and compared them with Continental ones, and with 

 figures and descriptions of Aspidium of pinum S\v., especially the plates 

 of Jacquiu and Schkuhr, we can, without hesitation, pronounce them 

 identical. 



3. C. Montana Link (Mountain B,) ; fronds triangular short 

 on a long slender stipes tripinnate, pinnas and pinnules spreading, 

 ultimate pinnules narrow-oblong inciso-dentate or pinnatifid, 



Ibane • the segments toothed at the apex, rachis not winged, involucre 

 early subrotund very obtuse. Hook. Sp. FiL L p. 200. Aspidium 



ffith ^Sw.; Schkh, FiL t,6S, 



re of Braedalbane mountains. Ben Lawers; Meal Cuachlar. Well dls- 



tiofi' i tinguished by its triangular, very compound fronds, and long stipes. 



nt- 

 illy in 



Cuin- 

 ilifax; 

 arrive 

 lature 



I each 

 erous 



00, is i 



e 



late 



7. AsPLENiuM Linn. Spleenwort. (Tab. X. f. 2.) 



,) [ Sori oblong or linear. Involucres of the same shape, arising 



from the lateral veins and opening on one side longitudinally 

 towards the central nerve or midrib. — Veins forked in the 



^^^ ^1 British species.— Name: a, not, ^ndaTrXrjv, the spleen, the ^hut 



C C ti 



