"Diagram of a colony of dicoryne, showing three forms of persons. a, normal hydriform person; b, modified bud-bearing hydriform person (blastostyle); c, degenerate medusiform persons (sporosacs)." — Encyclopedia Britannica, 1893

Dicoryne

"Diagram of a colony of dicoryne, showing three forms of persons. a, normal hydriform person; b, modified…