Prares XXII, XXIII. XXIV. XXV. XXVI. 
THE BROAD PRICKLY-TOOTHED BUCKLER FERN 
(LASTREA DILATATA). 
LASTREA, Presl. 
dial or 
ases circular 
rminal on the venules, covered by an 
more or les 
us or notch, the margin 
t, disunited at 
dusium, or membranous scale. Zndusium reniform, i 
rotundate with а po 
becoming free. Veins simple, forked, or pinnate; venules dire 
ior notch ; attached by the si 
their extremities 
L. prrarara: fronds ovate, sub-tr 
r, or oblong-lanceolate, bipinnate, with tho 
nosely mucronato-serrate ; scales of the stipes 
iate, usually dark-eentred ; 
pinnules pinnate or pin 
numerous, lan 
with stalked 
ate, entire or fim indusium frin 
NORMALIS: fronds ап 
> two-colonred, entire 
le, ovate, bi-tripinnate; scales of the stipes strongly 
Var. ТААСЕТШОМА: fronds ample, tri 
r, tripinnate; pinnules 
bluntish with coarse teeth at the apex 
slightly glandular; scales of the stipes 
oblong, the pinnulets ovate-oblon 
indusia small, the margin irre 
dark-centred. 
Var, қана: fronds dwarf, bipinnate, ovato, somewhat glandular while fresh ; pinnules. 
nately-toothed ; sori biserial, 
mall evanescent delicate, at length concealed by the spore- 
slightly gl tipos dark-centred, 
decurrent, connected by a wing, convex, m 
inet ; indusi 
ndular ; scales of the 
long-ovate, or tria ate, bipinnate 
1 under surface of veins clothed with glands; pinnules 
a; seales of the 
