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PTEBIS AQUILINA. Lixx^us. 
( Common Braize or Braclzen.) 
Derivation of Name. Tlie name ^teru is Greek, signifying 
a fern. Pteris is from pteron, a wing or feather, in allu- 
sion to the form of the fronds. The specific name is from 
the Latin aquila^ an eagle, from the fancied resemblance 
- to an eagle in the root when cut across. 
SYNONYMES. 
Allosurus Aquilinijs. Brest . 
Eupteris Aquilina. Newman. 
DESCRIPTION. 
Cafdex creeping, dark brown, and succulent, with brown 
fibrous rootlets. 
Fronds in general form are somewhat triangular, twice 
or thrice pinnate, with pinnatifid pinnules. They spring 
about May and wither early. The whole frond has some- 
times a very crisped form, which in young plants is very 
beautiful, but it is alwaj's barren. 
Veins forked, reaching to the margin where they are 
united by a marginal vein along which appear the 
Spore Cases, covered by a membrane attached to the 
marginal vein. 
f. 
