IRMNG Taxon list
Petersenia andreei (Lagerheim) Sparrow, 1936 accepted as Olpidiopsis andreei (Lagerheim) Karling, 1942
Petersenia catenophlyctidis B.M. Sundaram, 1968 accepted as Cornumyces catenophlyctidis (B.M. Sundaram) M.W. Dick, 2001
Petersenia irregularis (Const.) Sparrow, 1943 accepted as Cornumyces irregularis (Const.) M.W. Dick, 2001
Petersenia lobata (Petersen) Sparrow, 1934
Petersenia pollagaster (Petersen) Sparrow, 1943
Petersenia utriculoba C.E. Mill., 1963 accepted as Cornumyces utriculobus (C.E. Mill.) M.W. Dick, 2001
Pontisma antithamnionis (Whittick & South) M.W. Dick, 2001
Pontisma dangeardii (Feldmann & Feldm.-Maz.) M.W. Dick, 2001
Pontisma feldmannii (Aleem) M.W. Dick, 2001
Pontisma inhabile (H.E. Petersen) M.W. Dick, 2001
Pontisma lagenidioides H.E. Petersen, 1905
Pontisma magnusii (Feldmann & Feldm.-Maz.) M.W. Dick, 2001