130 VII. LASTREA. 
The variety dumelorum is a dwarf plant, growing from 
fix inches to a foot high, and having a sub-triangular- 
ovate outline. The suggestion that it is an immature 
though fertile condition of the ordinary form, is possibly 
correct. The fronds are bipirinate ; the stipes short with 
two-coloured scales; the lower pinnae unequal-sided; the 
pinnules ovate-oblong obtuse pinnatitid, having aristate- 
serrate lobes with the teeth mostly at the apex ; the sori 
small distinct, ranged in a line on each side the midrib of 
the pinnae, and covered by a thin flat involucre. This 
form or state of L. dilatata is probably of frequent occur- 
rence though there are no exact or trustworthy records of 
its distribution. 
The variety angnsta I have seen but from one locality. 
In the narrow-elongate outline of the frond it quite cor- 
responds with L. spinu/o<a, but the scales of the stipes are 
totally unlike those of that species. The fronds are about 
two feet long including the stipes which is nearly half of 
the entire length. The scales are moderately abundant 
on the stipes, and are large attenuately lance-shaped, 
palish brown but distinctly marked with a darker central 
bar. The frond is narrowly-linear-lanceolate, bipinnate. 
The pinnae about three inches long, shortly deltoid, with 
a somewhat attenuated apex, distant especially below, the 
inequality of the superior and inferior pinnules very marked 
in the first second and third pairs of pinnae but becoming 
less obvious above. The pinnules have mostly a short 
stalk-like attachment, and are linear-oblong, obtuse, very 
deeply pinnatifid with ovate or oblong incased or serrated 
lobes margined with spiny teeth. The sori are small but 
very abundant, and are covered by convex indusia which 
are very indistinctly glandular. It was found by the late 
Miss Bower, near Tunbridge Wells. 
The variety maculata grows about a foot and a half in 
height, including the stipes, which is about as long as the 
frond, and is thickly clothed with lanceolate pointed scales, 
of a uniform brown colour. The colour of the frond is 
