Not an accepted name (status: unknown). No accepted name is recorded for it yet.

Calliergon cordifolium subsp. orbiculari-cordatum Grout (Renauld & Cardot) 4% complete

No common name

Moss Fl. N. Amer., 3: 96. 19B, 96, 1931

There is no corrections for Calliergon cordifolium subsp. orbiculari-cordatum yet.