84 
VI. FOLYSriCHUM. 
POLYSTICHDM IONCHITIS, Roth : Bab. Man. 411: Newm. 1C?: 
Florlgr. Brit iv. 89. ASPIDIUM LONCBITIS, Swartz: Sm. Eng. Fl. 
iv. 271 : Hook and Arn. FL 668 : Franc. 3 2. POLYPODIUM LON- 
CHiTia, Liiiiutus : Eng. Bot t. 797. 
The Rough Alpine Shield 
Fern has a tufted scaly caudex, 
from which the black wiry roots, 
and the terminal adherent fronds 
are produced. The persistent 
fronds appear early in spring, 
arrive at maturity in the au- 
tumn, and remain in full vigour 
through the winter onwards ; 
they are from six to eighteen 
laches in height, linear lau- 
[PolysUehutn LoncliitU.] 
