| 6926 | Herbarium Image: Tofieldia pusilla |
|---|
| 6927 | Herbarium Image: Luzula spicata |
|---|
| 6928 | Herbarium Image: Tofieldia pusilla |
|---|
| 6929 | Herbarium Image: Carex bigelowii |
|---|
| 6930 | Herbarium Image: Carex arenaria |
|---|
| 6931 | Herbarium Image: Elodea sp. |
|---|
| 6932 | Herbarium Image: Carex aquatilis |
|---|
| 6933 | Herbarium Image: Persicaria amphibia |
|---|
| 6934 | Herbarium Image: Persicaria amphibia |
|---|
| 6935 | Herbarium Image: Persicaria hydropiper |
|---|
| 6936 | Herbarium Image: Eleocharis palustris |
|---|
| 6937 | Herbarium Image: Persicaria amphibia |
|---|
| 6938 | Herbarium Image: Schoenoplectus lacustris |
|---|
| 6939 | Herbarium Image: Schoenoplectus tabernaemontani |
|---|
| 6940 | Best Management Practices to Reduce Diffuse Pollution from Agriculture |
|---|
| 6941 | A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive |
|---|
| 6942 | Radiation Experiments on Aquatic Organisms |
|---|
| 6943 | Impact Of Conifer Harvesting And Replanting On Upland Water Quality |
|---|
| 6944 | Porth, Gluvian and Menalhyl catchment river water quality classification 1990 |
|---|
| 6945 | River Cober catchment river water quality classification 1991 |
|---|
| 6946 | River Fal catchment river water quality classification 1990 |
|---|
| 6947 | Fact sheet for the RBCA tool kit for chemical releases |
|---|
| 6948 | River Fal catchment river water quality classification 1991 |
|---|
| 6949 | River Par and Crinnis catchment river water quality classification 1990 |
|---|
| 6950 | River Par and Crinnis catchment river water quality classification 1991 |
|---|
