| Determined as: | Ceratophyllaceae Ceratophyllum demersum L. |
| Collected by: | Breese, 4.8.1880 |
| Comments for presentation : | part of plant only, comparative overview |
| Herbarium: | GFW Acc. No.: 45449 |
| herbar scan |  |
| Country: | Germany |
| Province: | Mecklenburg-Vorpommern |
| Locality: | Greifswald |
| Habitat: | Gräben auf dem Rosenthal |