2276 | Herbarium Image: Eupatorium cannabinum |
2277 | Spirogyra group, |
2278 | Herbarium Image: Helictotrichon pubescens |
2279 | Phacus, |
2280 | Herbarium Image: Undetermined |
2281 | Herbarium Image: Potamogeton x angustifolius |
2282 | Scenedesmus, |
2283 | Regional water quality monitoring and surveillance programme for 1992 : biological quality assessment of rivers |
2284 | Oscillatoria (Planktothrix), |
2285 | Herbarium Image: Pinguicula lusitanica |
2286 | River Exe catchment management plan : action plan (1996) |
2287 | Herbarium Image: Chara aculeolata |
2288 | Herbarium Image: Huperzia selago |
2289 | The River Cam catchment management plan : annual monitoring report |
2290 | Zygorhizidium |
2291 | Zoospores |
2292 | Tomorrow's water : water resources development strategy |
2293 | Scytonema, |
2294 | Gonium, |
2295 | Guidance for estimating the air quality impact of stationary sources - GN 24 |
2296 | Herbarium Image: Linum catharticum |
2297 | Draparnaldia, |
2298 | Vaucheria, |
2299 | Setodes argentipunctellus larva, |
2300 | Podochytrium |