Closterium intermedium var. hibernicum
Closterium intermedium var. intermedium
Closterium intermedium f. eboracense
Closterium intermedium var. mesianum
Closterium intermedium var. delicatulum
Closterium intermedium var. ornatum
Closterium intermedium var. erectum
Closterium intermedium var. alpinum
Closterium intermedium var. latum
Closterium intermedium var. rectostriatum
Closterium intermedium var. spirostriolatum
Closterium intermedium f. minor