1/18
Phormidium irriguum Anagnostidis et Komárek
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Heath Hen Meadow Brook, Acton, MA; Common |
2/18
Phormidium irriguum Anagnostidis et Komárek
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Heath Hen Meadow Brook, Acton, MA; Common |
3/18
Phormidium irriguum Anagnostidis et Komárek
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Heath Hen Meadow Brook, Acton, MA; Common |
4/18
Phormidium irriguum Anagnostidis et Komárek
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Heath Hen Meadow Brook, Acton, MA; Common |
5/18
Phormidium irriguum Anagnostidis et Komárek
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Heath Hen Meadow Brook, Acton, MA; Common |
6/18
Phormidium retzii Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Reed Brook Preserve, Florida, MA. Boreal forest, calcareous; Common |
7/18
Phormidium retzii Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Reed Brook Preserve, Florida, MA. Boreal forest, calcareous; Common |
8/18
Phormidium retzii Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Reed Brook Preserve, Florida, MA. Boreal forest, calcareous; Common |
9/18
Phormidium retzii Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Reed Brook Preserve, Florida, MA. Boreal forest, calcareous; Common |
10/18
Phormidium retzii Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Reed Brook Preserve, Florida, MA. Boreal forest, calcareous; Common |
11/18
Phormidium retzii Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Reed Brook Preserve, Florida, MA. Boreal forest, calcareous; Common |
12/18
Phormidium retzii Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Reed Brook Preserve, Florida, MA. Boreal forest, calcareous; Common |
13/18
Phormidium Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | On rock in wet culvert, Stow, MA |
14/18
Phormidium Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | On rock in wet culvert, Stow, MA |
15/18
Phormidium subuliforme Anagnostidis et Komárek
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Halibut Point, Cape Ann, MA (marine) |
16/18
Phormidium subuliforme Anagnostidis et Komárek
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Halibut Point, Cape Ann, MA (marine) |
17/18
Phormidium uncinatum Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Reed Brook Preserve, Florida, MA. Boreal forest, calcareous. Common |
18/18
Phormidium uncinatum Gomont
| Order: | Oscillatoriales |
| Family: | Oscillatoriaceae |
| Ecology: | Reed Brook Preserve, Florida, MA. Boreal forest, calcareous. Common |