Cosmarium retusiforme var. acutum
Cosmarium retusiforme var. africanum
Cosmarium retusiforme var. alpinum
Cosmarium retusiforme var. crassum
Cosmarium retusiforme var. elevatum
Cosmarium retusiforme var. incrassatum
(tree size 1)
Cosmarium retusiforme var. major
Cosmarium retusiforme var. morzinense
Cosmarium retusiforme f. retusum