| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | NY State; location not recorded |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | NY State; location not recorded |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Quarry Hill, Pownal, VT; Common |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Quarry Hill, Pownal, VT; Common |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Quarry Hill, Pownal, VT; Common |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Quarry Hill, Pownal, VT; Common |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Quarry Hill, Pownal, VT; Common |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Connecticut Hill Wildlife Management Area, Newfield, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Connecticut Hill Wildlife Management Area, Newfield, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Connecticut Hill Wildlife Management Area, Newfield, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Connecticut Hill Wildlife Management Area, Newfield, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Connecticut Hill Wildlife Management Area, Newfield, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Connecticut Hill Wildlife Management Area, Newfield, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Dripping calcareous rocks in the Green River Gorge, Leyden MA; Exceedingly common on limestone substrates |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Dripping calcareous rocks in the Green River Gorge, Leyden MA; Exceedingly common on limestone substrates |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Dripping calcareous rocks in the Green River Gorge, Leyden MA; Exceedingly common on limestone substrates |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Dripping calcareous rocks in the Green River Gorge, Leyden MA; Exceedingly common on limestone substrates |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Dripping calcareous rocks in the Green River Gorge, Leyden MA; Exceedingly common on limestone substrates |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | A small pond at the Cayuta Lake boat launch, southeastern Schuyler County about three miles northeast of Odessa, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | A small pond at the Cayuta Lake boat launch, southeastern Schuyler County about three miles northeast of Odessa, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | A small pond at the Cayuta Lake boat launch, southeastern Schuyler County about three miles northeast of Odessa, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | A small pond at the Cayuta Lake boat launch, southeastern Schuyler County about three miles northeast of Odessa, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | A small pond at the Cayuta Lake boat launch, southeastern Schuyler County about three miles northeast of Odessa, NY |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Macedonia Brook in Macedonia State Park, Macedonia (Kent) CT |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Macedonia Brook in Macedonia State Park, Macedonia (Kent) CT |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Macedonia Brook in Macedonia State Park, Macedonia (Kent) CT |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Macedonia Brook in Macedonia State Park, Macedonia (Kent) CT |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Macedonia Brook in Macedonia State Park, Macedonia (Kent) CT |
| Order: | Nostocales |
| Family: | Nostocaceae |
| Ecology: | Macedonia Brook in Macedonia State Park, Macedonia (Kent) CT |