LASTREA. 
117 
tivation. It is rather rare, or at least local in its occur- 
rence. 
The variety coUina, ^^Lastrea collina of Newman, is 
a distinct-looking plant. The form of its fronds is ovate, 
drawn out to a long narrow point, or narrow oblong lan- 
ceolate ; the pinnules, which are obtusely ovate, and have 
,a broad attachment at the base, have the serratures on 
their margin broader and less spinulose than in the com- 
mon form. It has narrow scales with a darker centre. It 
was first noticed by the Rev. G. Finder on the hills of 
Westmoreland, and has been found elsewhere. 
The variety glandulosa> another form of this plant, is 
of larger growth, and its surface is covered with glands ; 
the scales of its stipes are broader and paler, and it has a 
somewhat creeping habit, so that it approaches near to the 
spinulosa form of L. cristata. This Mr. Newman pro- 
poses to name Lastrea glandulosa. It is intermediate 
both in character and aspect, between spinulosa and 
dilatata; and was originally found in the Forest of 
Dean. 
The variety dumetorum is of comparatively small size, 
and has oblong-ovate or ovate-triangular fronds, covered 
with glands ; the stipes is covered with narrow, pointed, 
