The colleters were examined by
removing the sepals from the glutaraldehyde fixed flowers,
dehydrated in an alcohol series, critical point dried, mounted on
stubs, coated with gold and examined with a Jeol Winsem 6400
microscope at 5 kV. Leaves were rehydrated in 3% phosphatebuffered
glutaraldehyde. For SEM studies the leaves were
dehydrated in an alcohol series, critical point dried, mounted on
stubs, coated with gold and examined with a Jeol Winsem 6400
microscope at 5 kV.