Cosmarium contractum var. contractum
Cosmarium contractum var. ellipsoideum
(tree size 1)
Cosmarium contractum var. incrassatum
Cosmarium contractum var. minutum
Cosmarium contractum var. papillatum
(tree size 1)
Cosmarium contractum var. subtrapeziforme
Cosmarium contractum var. amazonense
Cosmarium contractum var. pseudogartanense
Cosmarium contractum var. distans
Cosmarium contractum var. reductum
Cosmarium contractum f. angulatus
Cosmarium contractum var. rectangulare
Cosmarium contractum var. abbreviatum
Cosmarium contractum var. cracoviense
Cosmarium contractum f. ellipticum
Cosmarium contractum var. gartanense
Cosmarium contractum f. interme
Cosmarium contractum f. intermedia
Cosmarium contractum var. maximum
Cosmarium contractum var. notatum
Cosmarium contractum var. ornatum
Cosmarium contractum var. pachydermum
Cosmarium contractum var. retusum
Cosmarium contractum var. rotundatum
Cosmarium contractum var. subfoveatum
Cosmarium contractum var. indentatum
Cosmarium contractum var. subellipticum
Cosmarium contractum var. subglobosum
Cosmarium contractum f. indentatum