I'^O MOUNTAIN FEEN. 



Genus. — Lastrea. Caudex tufted, its crown composed of 

 undeveloped fronds standing above the surface : midveins of 

 pinnules distinct ; lateral veins alternate, sometimes once 

 forked, but not uniformly ; each bears a circular mass of cap- 

 sules near, but not at, its extremity. 



Species. — Montana. Caudex tufted : stipes very short, 

 almost wanting, chaiFy : frond semierect, lanceolate, much 

 attenuated at the base, pinnate : pinnte pinnatifid, divisions 

 rounded ; lower pinuee very short, deltoid, obtuse. 



Polypodium fragrans, Linn. Mant. ii. S07 ; Tluds. Fl. Ang. 



457, (2nd edition). 

 Polypodium montanum, Vogler, Diss, de Pol. mont. ; " Willd. 



Berol. 291 " ; Roth, Flor. Germ. p. 447, No. 4. 

 Polypodium pterioides, Vill. Hist. PI. Dauph. iii. 841. 

 Polypodium limbospermum, Bell. Act. Taur. v. 253. 

 Polypodium Oreopteris, Ehrh. Beit7\ ; Dicks. Tr. Linn. Soc. 



i. 181 ; With. Arr. 775. 

 Polipodium Thelypteris, Bolt. Fil. Brit. 40, t. 22. 

 Polystichum montanum. Roth, Flor. Germ. iii. 74. 

 Aspidium Oreopteris {Swartz), Sm. E. F. iv. 286, E. B. 1019 ; 



Mack. Fl. Hib. 339 ; Hook, and Am. 569. 

 Lastrea Oreopteris, Bory, Diet. Class. d'Hist. Nat. vi. 588 ; 



NetV7n. N. A. 17, F. 187 ; Bah. 410. 

 Hemestheum montanum, Newm. Phytol. Ajip. xxii. 

 The figures of this fern are generally good : that in Bolton, 

 which I have quoted above as beaiing the name of the pre- 

 ceding species, is excellent. 



This fern has received six specific names, besides that of 

 Thelypteris erroneously assigned to it : it is the Polypodium 

 montanum of Vogler, and subsequently the Polystichum mon- 

 tanum of Roth, the Polypodium Oreopteris of Ehrhart and 

 Dickson, the Polypodium fragrans of the second, but not of the 



