656 CRYPTOGAMIA FILICES. 



ACROSTICHUM. Gen. pi 11 73. ' 



Fru5iiJicationes difcuiti totum frondis tegentes* 

 * Fronde Jtmplici divifa. 

 feptentrio' ACROSTICHUM frondibus nudis linearibus la- 

 ^^^^ '• ciniatis. Sp.pl. 1524. (Ger. em. 1561./. 8, Ocd. 



Dm. t. 60. opt.) 



Forked Fern. JngHs. 



This grows out of the clifrs of the rocks about 

 Arthur's Seat, at Edinburgh. n.Wl. 



It ^rows in tufts, refembling at firft fight fome 

 lufliy grafs. The leaves vary in height from one 

 to three 01 four inches. They are commonly a 

 little curved, narrow, linear, and entire at the 

 bafe, but dilated towards the extremity, and r :- 

 vided into two or three lanceolate forks or leg- 

 ments, which are again irregularly cut into two, 

 three, or more lefler recurved ones. The fruili- 

 iications make their firft appearance on the un- 

 der fide of thefe fegments in fmall lines, like as 

 in the Afpknium Rut a muraria, to which it is 

 nearly allied, but in the adult plant the inferior 

 difc of the leaf is totally covered with brown 

 dufty capfules, as is the cafe alfo with the A. 

 Rutamuraria, fo that they properly belong both 

 to the lame genus. Mr. Talden, ^ 



PTE^IS. Gen. pi 1174. 

 Fruclijicaticncs in lineis marginalibus. 



PTERIS 



