| Closterium striolatum; specimen from (1) |
 |
| Closterium striolatum; center of the cell; focal plane on the cell wall (1) |
 |
| Closterium striolatum; apex. The vacuole contains a single crystal (1) |
 |
| Closterium striolatum; apex. Focal plane on the striated cell wall. (1) |
|
| |
 |
| Closterium striolatum/ costatum; specimen from (2) |
| |
| |
| Location: Wuppertal, NRW, water reservoir (1); Wahner Heide near Cologne (2), ditch with Sphagnum |
| Habitat: between submersed mosses (1); detritus (2) |
| Date: 10.03.2014 (1); 01.04.20118 (2) |
|
|
