1/22
Petalonema alatum Kirchner
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Robert Treman State Park, Ithaca NY. Common here |
2/22
Petalonema alatum Kirchner
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Robert Treman State Park, Ithaca NY. Common here |
3/22
Petalonema alatum Kirchner
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Robert Treman State Park, Ithaca NY. Common here |
4/22
Petalonema alatum Kirchner
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Robert Treman State Park, Ithaca NY. Common here |
5/22
Petalonema alatum Kirchner
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Robert Treman State Park, Ithaca NY. Common here |
6/22
Petalonema alatum Kirchner
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Robert Treman State Park, Ithaca NY. Common here |
7/22
Petalonema alatum Kirchner
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Robert Treman State Park, Ithaca NY. Common here |
8/22
Petalonema alatum Kirchner
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Robert Treman State Park, Ithaca NY. Common here |
9/22
Petalonema densum Migula
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Carpenter Rd. Ravine, Burdett, NY |
10/22
Petalonema densum Migula
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Carpenter Rd. Ravine, Burdett, NY |
11/22
Petalonema densum Migula
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Carpenter Rd. Ravine, Burdett, NY |
12/22
Petalonema densum Migula
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Carpenter Rd. Ravine, Burdett, NY |
13/22
Petalonema densum Migula
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Carpenter Rd. Ravine, Burdett, NY |
14/22
Petalonema densum Migula
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Carpenter Rd. Ravine, Burdett, NY |
15/22
Petalonema incrustans Komárek
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Green River Valley, Leyden, MA. With Trentepohlia aurea |
16/22
Petalonema incrustans Komárek
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Green River Valley, Leyden, MA. With Trentepohlia aurea |
17/22
Petalonema incrustans Komárek
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Green River Valley, Leyden, MA. With Trentepohlia aurea |
18/22
Petalonema incrustans Komárek
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Green River Valley, Leyden, MA. With Trentepohlia aurea |
19/22
Petalonema incrustans Komárek
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Green River Valley, Leyden, MA. With Trentepohlia aurea |
20/22
Petalonema incrustans Komárek
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Green River Valley, Leyden, MA. With Trentepohlia aurea |
21/22
Petalonema incrustans Komárek
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Green River Valley, Leyden, MA. With Trentepohlia aurea |
22/22
Petalonema incrustans Komárek
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Ecology: | Green River Valley, Leyden, MA. With Trentepohlia aurea |