[4] but comparative morphology and rbcL and nuclear LSU rRNA sequence data showed that they were separate and therefore order Peyssonneliales was established in 2009 to hold them both.

[6] Then using robust rbcL phylogeny, order Peyssonneliales was lso resolved as monophyletic with well-supported main lineages.

Prostrate growth is by radiating marginal rows of transversely dividing apical initials in the basal layer (multi axial).

The first section of the perithallial cells gives rise to simple or branched filaments that together form a loose to compact upper- only cortex or upper and lower cortices.

Then the various blends of relative amounts of these 3 and chlorophyll, influences the plant colour, which can vary from dark red to blue, brown, or greenish.