1826 | Herbarium Image: Epilobium obscurum |
1827 | Herbarium Image: Eleocharis quinqueflora |
1828 | Frontonia, |
1829 | Herbarium Image: Carex elata |
1830 | Herbarium Image: Potamogeton pectinatus |
1831 | Herbarium Image: Lysimachia terrestris |
1832 | Committed to the environment : a report from the committees of the Environment Agency's Southern Region for the year 1999/00 |
1833 | Herbarium Image: Ruppia maritima |
1834 | Herbarium Image: Carex nigra |
1835 | Herbarium Image: Cornus suecica |
1836 | Cyanothece, |
1837 | Herbarium Image: Chara vulgaris |
1838 | Herbarium Image: Veronica catenata |
1839 | Herbarium Image: Montia fontana |
1840 | Batrachospermum, |
1841 | Herbarium Image: Potamogeton obtusifolius |
1842 | Herbarium Image: Ceratophyllum demersum |
1843 | Herbarium Image: Circaea alpina |
1844 | Water pollution incidents in England and Wales 1994 : report summary |
1845 | Pesticides in the aquatic environment 1997 full report |
1846 | Herbarium Image: Utricularia intermedia |
1847 | Herbarium Image: Lythrum portula |
1848 | Trachelomonas, |
1849 | Closterium |
1850 | Spirogyra, |