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LASTREA OREOPTEEIS. Peesl. 
(Mountain BucUer Fern, or Meath Shield Fern.) 
Derivation of Name. The specific name given in honour 
of M. Delastre, a French botanist. The generic name is 
from or 08 a mountain, and pteris a fern. 
SYNONA-MES. 
PoLYPODiUM Feagrans. LinncBiis. 
Polypodium Oreopteris. Wither mg. 
Polypodium Thelat>teris. Bolton. 
PoLYSTICHUM MOXTANUAI. Both. 
Aspidium Oreopteris. Swartz, Moolcer and Arnott, Bentham. 
Lastrea Montana. Newman. 
DESCRIPTION. 
Caudex tufted and scaly, yearly increasing ; with strong, 
tough rootlets, spreading in all directions. 
Fronds almost erect, lanceolate pinnate, with pinnatifid 
divisions, slightly indented ; lower pinnae very short, stallvs 
very short, covered at the bottom with pale brown scales. 
Wlien the fronds are unfolding the exserted ends of the 
pinnides give the folded portion a remarkably jagged appear- 
ance, very marked, and peculiar to this fern. Pale j^eUowish 
green appearing at the end of April and beginning of May. 
