The species listed below are likely a small percentage of the green algae that grow in the ocean adjacent to Mount Desert Island. Please send corrections and updates to info@vfthomas.com. Photographs are welcome. Thank you.
| Class | Order | Family | Genus | Specific Epithet | authority | common name | Sources (full citations given after this table) |
| ? | ? | ? | Enteromorpha | intestinalis | ? | [common name?] | Champlainers (RGG, TFV) |
| ? | ? | ? | Ulva | lactuca | ? | sea-lettuce | Champlainers (RGG, TFV) |
![[common name?]](greenalgaeimages/Enteromorpha intestinalis.jpg){kind=link}
