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210
The Fairy-Land of Science
·
Arabella B. Buckley
159
Now
this
little
Selaginella
is
of
all
living
plants
the
one
most
like
some
of
the
gigantic
trees
of
the
coal-forests.
If
you
look
at
this
picture
of
a
coal-forest
(Fig.
51),
you
will
find
it
difficult
perhaps
to
believe
that
those
great
trees,
with
diamond
markings
all
up
the
trunk,
hanging
over
from
the
right
to
the
left
of
the
picture,
and
covering
all
the
top
with
their
boughs,
could
be
in
any
way
relations
of
the
little
Selaginella;
yet
we
find
branches
of
them
in
the
beds
above
the
coal,
bearing
cones
larger
but
just
like
Selaginella
cones;
and
what
is
most
curious,
the
spores
in
these
cones
are
of
exactly
the
same
kind
and
not
any
larger
than
those
of
the
club-mosses.
These
trees
are
called
by
botanists
Lepidodendrons,
or
scaly
trees;
there
are
numbers
of
them
in
all
coal-mines,
and
one
trunk
has
been
found
49
feet
long.
Their
branches
were
divided
in
a
curious
forked
manner
and
bore
cones
at
the
ends.
The
spores
which
fell
from
these
cones
are
found
flattened
in
the
coal,
and
they
may
be
seen
scattered
about
in
the
coal-ball.
Week
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