Why Does the Absorption Spectrum Have Fewer Lines Than the Emission Spectrum?

[Redbok]

I found an emission spectrum and an absorption spectrum of some element in my book. The lines match, but there are less lines in the absorption spectrum... What's the meaning of this? All other examples I found on the internet have the same amount of lines, which seems pretty logic to me.

 

[pam]

Some of the emission lines are from one excited state to another.
These lines do not appear in absorption on the ground state.