1876 | Progress Report December 1992 |
1877 | Herbarium Image: Rorippa islandica |
1878 | Gyrosigma, |
1879 | Progress Report June 1989 |
1880 | Heptagenia fuscogrisea |
1881 | Peridinium, |
1882 | Prymnesium |
1883 | Gomphosphaeria, |
1884 | Porphyridium, |
1885 | Uroglena volvox |
1886 | Herbarium Image: Mimulus luteus |
1887 | Herbarium Image: Nitella opaca |
1888 | Herbarium Image: Nitella opaca |
1889 | Herbarium Image: Potamogeton perfoliatus |
1890 | Herbarium Image: Oenanthe fluviatilis |
1891 | Nostoc, |
1892 | Herbarium Image: Potamogeton crispus |
1893 | Trentepohlia, |
1894 | Herbarium Image: Potamogeton gramineus |
1895 | Prymnesium |
1896 | Melosira, |
1897 | Scenedesmus, |
1898 | Rhodochorton (Audouinella), |
1899 | Progress Report December 1999 |
1900 | Herbarium Image: Alisma plantago-aquatica |