Children (23 direct children, 24 direct and indirect children):
Closterium venus var. appollonionis
Closterium venus var. crassum
Closterium venus var. incurvum
Closterium venus var. minus
Closterium venus var. venus
(tree size 1)
Closterium venus var. westii
Closterium venus var. apollonionis
Closterium venus var. inflatum
Closterium venus f. latum
Closterium venus f. minus
Closterium venus var. robustum
Closterium venus var. debegenicum
Closterium venus f. novum
Closterium venus var. verrucosum
Closterium venus subsp. crassum
Closterium venus subsp. croasdalei
Closterium venus subsp. incurvum
Closterium venus subsp. maior
Closterium venus f. major
Closterium venus f. majus
Closterium venus f. sigmoideum
Closterium venus f. torta
Closterium venus f. tumida