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1
136
My Studio Neighbors
·
W. Hamilton Gibson
112
The
most
common
of
the
group,
the
C.
acaule,
most
widely
known
as
the
moccasin-flower,
whose
large,
nodding,
pale
crimson
blooms
we
so
irresistibly
associate
with
the
cool
hemlock
woods,
will
afford
a
good
illustration.
The
lip
in
all
the
cypripediums
is
more
or
less
sac-like
and
inflated.
In
the
present
species,
C.
acaule,
however,
we
see
a
unique
variation,
this
portion
of
the
flower
being
conspicuously
bag-like,
and
cleft
by
a
fissure
down
its
entire
anterior
face.
In
Fig.
16
is
shown
a
front
view
of
the
blossom,
showing
this
fissure.
The
"column"
(B)
in
the
cypripedium
is
very
distinctive,
and
from
the
front
view
is
very
non-committal.
It
is
only
as
we
see
it
in
side
section,
or
from
beneath,
that
we
fully
comprehend
the
disposition
of
stigma
and
pollen.
Upon
the
stalk
of
this
column
there
appear
from
the
front
three
lobes--two
small
ones
at
the
sides,
each
of
which
hides
an
anther
attached
to
its
under
face--the
large
terminal
third
lobe
being
in
truth
a
barren
rudiment
of
a
former
stamen,
and
which
now
overarches
the
stigma.
The
relative
position
of
these
parts
may
be
seen
in
the
under
view.
The
anthers
in
this
genus,
then,
are
two,
instead
of
the
previous
single
anther
with
its
two
pollen-cells.
The
pollen
is
also
quite
different
in
its
character,
being
here
in
the
form
of
a
pasty
mass,
whose
entire
exposed
surface,
as
the
anther
opens,
is
coated
with
a
very
viscid
gluten.
With
the
several
figures
illustrating
the
cross-fertilization,
the
reader
will
readily
anticipate
any
description
of
the
process,
and
only
a
brief
commentary
will
be
required
in
my
text.
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