Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic phylogeny of green plants. The chlorophytes (pink) and the streptophytes (light green) constitute the two phyla of green plants. The chlorophytes are further divided into a number of classes including chlorophyceae (yellow), trebouxiophyceae (orange) and mamiellophyceae (red) whereof mamiellophyceae is the basal clade. Terrestrial plants (embryophytes; green) are part of the streptophyte phylum. The position of red algae is indicated to root the schematic tree.
