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| Scroll through list of sites as necessary. | site | collection date | depth | substrate | salin | locality kind | comments | reference |
|---|---|---|---|---|---|---|---|---|
| A | east Wide Waters (of the Erie Canal?), near Rochester , New York, USA | between May and Aug 1907 | type locality | in the sediment of brooks. | Graff Lvon (1911) 386 | |||
| B | Skutustaoir, north Iceland | Jul 1-Aug 2, 1937 | freshwater | pond near Skutustaoir, several specimens. | Steinböck O (1948) 24 | |||
| C | from the provinces of Avila, Cuenca, Guadalajara, Madrid and Segovia, Peninsula Iberica (Iberian Peninsula, Peninsula Hispanica), Spain | 1996 or earlier | freshwater | Iberian Peninsula. | Farias F, Gamo J, Norena-Janssen C (1996) abstract | |||
| D | Loch Lomond, Scotland, United Kingdom | 1907 or earlier | freshwater | shallow pool on the Deri (mountain) near Abergavenny, Wales, and shores of Loch Lomond. Early summer and later in the year. | Martin CH (1907) ; from Young 1970 (citation)- p. 223, who notes that records appear in Whitehead 1913 (citation) and Graff 1913 (citation) | |||
| E | Abergavenny, Wales, United Kingdom | 1907 or earlier | freshwater | shallow pool on the Deri (mountain) near Abergavenny, Wales, and shores of Loch Lomond. Early summer and later in the year. | Martin CH (1907) ; from Young 1970 (citation)- 223 who notes that records appear in Whitehead 1913 (citation) and Graff 191 | |||
| F | Blake Mere, Ellesmere, Shropshire, United Kingdom | May 1966 - Feb 1967 | littoral | freshwater | calcium rich lake (13.2 mg/l). | Young JO (1973) 204 | ||
| G | Newton Mere, Shropshire, United Kingdom | May 1966 - Feb 1967 | littoral | freshwater | calcium rich lake (7.2 mg/l). | Young JO (1973) 204 | ||
| H | Crose Mere, Shropshire, United Kingdom | May 1966 - Feb 1967 | littoral | freshwater | calcium rich lake (59.6 mg/l). | Young JO (1973) 204 | ||
| I | Lake Geneva (Genfer, Genfersees, Ginevra, Geneve, Leman, Lac Léman, Lemano), Switzerland | 1897 or earlier | freshwater | default type | Du Plessis G (1895) 25; from Graff (citation)- p. 341 | |||
| J | Lac de Neuchatel (Neuenburger See, Neuenburg, Neuenburgersee, Neuchâtel), Switzerland | 1897 or earlier | freshwater | default type | Du Plessis G (1895) 25; from Graff (citation)- p. 341 | |||
| K | Strassburg, Germany | 1913 or earlier | freshwater | ponds and lakes of Europe. | Graff Lvon (1913) 337 | |||
| L | Botanischer Garten der Christian-Albrechts-Universität zu Kiel (Botanical Garden, Kieler Botanischer Garten), Kiel, Germany | May 12, 1957 | Botanischer Garten Kiel, durch Leitungswasser gespeiste künstliche Quelle am oberen Teich (2 Ex.) | Rixen J-U (1961) 507 | ||||
| M | Botanischer Garten der Christian-Albrechts-Universität zu Kiel (Botanical Garden, Kieler Botanischer Garten), Kiel, Germany | May 8, 1957 | Botanischer Garten Kiel, durch Leitungswasser gespeiste künstliche Quelle am oberen Teich (3 Ex.) | Rixen J-U (1961) 507 | ||||
| N | Dieksee, Schleswig-Holstein, Germany | May 7, 1957 | Quelltümpel bei Malente, am Holm, oberhalb des Dieksees, in faulendem Laub (nach Thienemann 1922 Quellbezirk D. VI) (1 Ex.) | Rixen J-U (1961) 507 | ||||
| O | western and middle, Czech Republic (Böhmen, Bohmen, Bohemia) | 1913 or earlier | freshwater | ponds and lakes of Europe. | Graff Lvon (1913) 337 | |||
| P | Lapland (Lappland, Lappi, Laplandiya) | 1913 or earlier | freshwater | ponds and lakes of Europe. Graff notes that this location is from Hofsten. | Graff Lvon (1913) 337 | |||
| Q | Kola Peninsula (Halbinsel Kola, Alexandrowsk, Kandalakscha, Kantalahti, Alexandrovsk), Russia | 1932 or earlier | freshwater | Steinböck O (1932) 321 | ||||