;CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to mailto:evolseq@tauex.tau.ac.il >Potamogeton crispus 13=0.10_18=0.08_21=0.08_25=0.06_26=0.50_28=0.04_36=0.08_39=0.06