136 FERNS. 
a taller variety of larger growth and thinner fronds occurs in damp 
forests, viz., A. bulbiferum, so called because young plants may 
spring from bulblike swellings on the summit of the fronds ; the 
third form is fond to grow on mossy springy rocks or Fern-stems, 
Fie. LVI. 
Fie. LVII.—(Asplenium flabellifolium).—1, a separated 
segment of the frond; 2, dorsal view of a spore-case; 3, lateral 
view of a spore-case ; 4, a spore-case burst ; 5, spore. 
from which it 
gracefully de- 
pends, viz., A. 
flaccidum ;_ it 
is slender, but 
of thick consis- 
tence and the 
fruitmasses are 
almost margi- 
nal on small 
undivided seg- 
ments. Asple- 
nium furcatum 
has been no- 
ticed in our 
colony as yet 
only near Port- 
land; it some- 
what resembles 
the more dis- 
sected forms of 
the foregoing 
species, but the 
pinne are still 
more divided, 
and upwards 
dilated and 
toothed, while 
the axis and 
stems are wool- 
ly-hairy. <As- 
plenium flabel- 
lifolium is one 
