Phylogenetic Tree from Analysis of 18S rDNA data (Buchheim, Fawley and Zechman [unpublished observations]):

MP analysis: Cladogram from maximum parsimony analysis of 18S rDNA sequence data using PAUP* 4.0b8 (Swofford 2001). The tree was rooted using data from streptophyte taxa. No differential weighting scheme was used. Bootstrap values ( greater than or equal to 50%) from 1000 replicates using NNI are listed at the appropriate internode. Branch lengths are drawn proportionally to the inferred change along the branch (see scale at lower left). The addition of 20 new 18S rDNA sequences (Buchheim & Fawley, unpub. obs.) resulted in the identification of eight new chlorophytan lineages and one streptophyte lineage, which are highlighted with boldface text and branches.