CRYPTOGAMIA— FILICES. Asplenium. 295 



Tlie variety (3, more deeply crenate and jigged than ordinary, 

 sent from Scotland by Dr. Alston to V. CoUinson, and assuredly 

 what Sibbald has figured, was taken by Mr. Hudson for Adian- 

 tum Irapcxijorme of Linnaeus. Sibbald's rude engravings may 

 very well excuse this nnstake ; but the latter is a real Adian- 

 turn, copiously branched, well delineated in Sloane, Plukenet 

 and I'lumier, a native of the West Indies^ not of Europe. The 

 late Bishop of Carlisle has observed Asplenium 7)uiri)ium growing 

 very luxuriantly in deep fissures of rocks 3 while, on the other 

 hand, Mr. Lightfoot found it, in the coves at Weems, jubt in 

 the dwarf, though jagged, state exhibited by Sibbald. 



4. A. septentrionale. Forked Spleenwort. 



Frond three-cleft ; leaflets alternate, linear, jagged at the 

 summit. 



A. septentrionale. Hull 24\. Sw. Syn. Fil.7n. Willd. Sp. PL 

 V. 5. 307. Fl. Br. 1 129. Engl. Bot. v. 1.5. t. 1017. Hook. Scot. 

 p. 2. 155. Lnnd. t. lG2.p. 158. Hnfm. Germ. v. 2. 12. 



Acrostichum septentrionale. Linn. Sp. PL 1524. Bolt. Fil. 12. 

 t. 8. FL Dan. t. GO. Dichs. Dr. PL 45. Ehrh. Crypt. 101. 



A. n. 1714. HalL Hist. v. 3, 17. 



Scolopendrium septentrionale. Roth Germ. v. 3. 49. 



Filix saxatilis Tragi. Rail Syn. 120. Bank. Hist, v. 3, p. 2. 7'i7.f. 

 Daledi. Hist. 122G./. 



F. nuda seu saxatilis. Trug. Hist. b2>7.f ; by mistake named ur- 

 borea. 



Muscus corniculatus. Gcr. Em. 15G1./. 



Holostium alterum, Filix saxea Tragi. Lob, Ic. 47./. 



In the dry rocky clefts of mountains, chiefly in the north. 

 On the mountains of Carnarvonshire. Mr. Lhwyd. In Edinburgh 

 park. T. IViUisel. On Ingleborough, Yorkshire. Mr. Tojield. 

 Above Ambleside, Westmoreland. Huds. On Arthur's Seat, 

 and at the Hermitage, by Blackford burn, near Edinburgh, 

 abundantly, in 1782. 

 Perennial. June — October. 



Root tufted, somewhat woody, with crooked fibres. Fronds innu- 

 merable, in broad dense patches, erect, three or four inches 

 high, firm, smooth, of a dark dull green, each with a naked 

 wiry stalk, a little dilated upwards, and terminating usually in 

 three, rarely but two, alternate, stalked, narrow, linear, up- 

 right, pointed lerrflets, jagged at the tips. The upper side of 

 each is furrowed 5 the back clothed entirely, first with the long 

 membranous covers, each originating from the disk, witliin the 

 . margin, at each side, and meeting over the midrib ; and subse- 

 quently, after the spreading of these membranes, with the tno 

 confluent linear /^ifliics of crowded, dark-brown, capsules. 



