Children (16 direct children, 16 direct and indirect children):
Closterium parvulum var. angustum
Closterium parvulum var. maius
Closterium parvulum var. obtusum
Closterium parvulum var. parvulum
Closterium parvulum var. taylori
Closterium parvulum var. cornutum
Closterium parvulum f. indicum
Closterium parvulum f. maximum
Closterium parvulum f. minor
Closterium parvulum var. angustissimum
Closterium parvulum f. sigmoideum
Closterium parvulum var. minus
Closterium parvulum var. taylorii
Closterium parvulum var. crassius
Closterium parvulum var. robustum
Closterium parvulum var. tumidum