knoppix@Microknoppix:~$ perl -Mstrict -wE 'my %genus = {};'
Reference found where even-sized list expected at -e line 1.
knoppix@Microknoppix:~$ 

##</code><code>##

knoppix@Microknoppix:~$ perl -Mstrict -wE 'my %genus = ();'
knoppix@Microknoppix:~$