2051 | Rhizophydium |
2052 | Melosira, |
2053 | Herbarium Image: Myosotis scorpioides |
2054 | Ceraclea dissimilis larva, |
2055 | Pleurotaenium, |
2056 | Progress Report December 1992 |
2057 | Herbarium Image: Rorippa islandica |
2058 | Gyrosigma, |
2059 | Progress Report June 1989 |
2060 | Syngenta Pond Physchem Data (2003) |
2061 | Heptagenia fuscogrisea |
2062 | Peridinium, |
2063 | Prymnesium |
2064 | Gomphosphaeria, |
2065 | Porphyridium, |
2066 | Uroglena volvox |
2067 | Herbarium Image: Mimulus luteus |
2068 | Herbarium Image: Nitella opaca |
2069 | Herbarium Image: Nitella opaca |
2070 | Herbarium Image: Potamogeton perfoliatus |
2071 | Herbarium Image: Oenanthe fluviatilis |
2072 | Nostoc, |
2073 | Herbarium Image: Potamogeton crispus |
2074 | Trentepohlia, |
2075 | Herbarium Image: Potamogeton gramineus |