Closterium abruptum var. abruptum
(tree size 1)
Closterium abruptum var. brevis
Closterium abruptum var. canadense
Closterium abruptum var. westiorum
Closterium abruptum var. cambricum
Closterium abruptum f. brevior
Closterium abruptum var. africanum
(tree size 1)
Closterium abruptum f. angustissimum
Closterium abruptum var. maius
Closterium abruptum var. majus
Closterium abruptum var. angustatum
(tree size 1)
Closterium abruptum var. brasiliense
Closterium abruptum var. elongatum
Closterium abruptum var. major
Closterium abruptum var. vallesiacum
Closterium abruptum subsp. brevius
Closterium abruptum f. africana
Closterium abruptum f. angustissima
Closterium abruptum f. bohemica
Closterium abruptum f. nilssonii
Closterium abruptum f. punctatum