Ptychostomum archangelicum (Bruch & Schimp.) J.R. Spence species accepted

Ptychostomum arcticum (R. Br.) J.R. Spence species accepted

Ptychostomum bimum (Schreb.) J.R. Spence species accepted

Ptychostomum compactum Hornsch. species accepted

Ptychostomum cyclophyllum (Schwägr.) J.R. Spence species accepted

Ptychostomum funkii (Schwägr.) J.R. Spence species accepted

Ptychostomum imbricatulum (Müll. Hal.) Holyoak & N. Pedersen species accepted

Ptychostomum lonchocaulon (Müll. Hal.) J.R. Spence species accepted

Ptychostomum meesioides (Kindb.) J.R. Spence species accepted

Ptychostomum pallens (Sw.) J.R. Spence species accepted

Ptychostomum pallescens (Schleich. ex Schwägr.) J.R. Spence species accepted

Ptychostomum touwii Bijlsma, Kruijer & M. Stech species accepted

Ptychostomum turbinatum (Hedw.) J.R. Spence species accepted

Ptychostomum wrightii (Sull. & Lesq.) J.R. Spence species accepted

Ptychostomum cernuum (Hedw.) Hornsch. species accepted

Ptychostomum creberrimum (Taylor) J.R. Spence & H.P. Ramsay species accepted

Ptychostomum altisetum (Müll. Hal.) J.R. Spence & H.P. Ramsay species accepted

Ptychostomum axel-blyttii (H. Philib.) J.R. Spence species accepted

Ptychostomum bryoides (R. Br.) J.R. Spence species accepted

Ptychostomum calophyllum (R. Br.) J.R. Spence species accepted

Ptychostomum cryophilum (Mårtensson) J.R. Spence species accepted

Ptychostomum cylindrothecium (R. Br. bis) J.R. Spence & H.P. Ramsay species accepted

Ptychostomum inclinatum (Sw. ex Brid.) J.R. Spence species accepted

Ptychostomum intermedium (Brid.) J.R. Spence species accepted

Ptychostomum knowltonii (Barnes) J.R. Spence species accepted

Ptychostomum kunzei (Hornsch.) J.R. Spence species accepted

Ptychostomum longisetum (Blandow ex Schwägr.) J.R. Spence species accepted

Ptychostomum marratii (Hook. & Wilson) J.R. Spence species accepted

Ptychostomum neodamense (Itzigs.) J.R. Spence species accepted

Ptychostomum nitidulum (Lindb.) J.R. Spence species accepted

Ptychostomum orthothecium (Cardot & Broth.) Holyoak & N. Pedersen species accepted

Ptychostomum purpurascens (R. Br.) J.R. Spence species accepted

Ptychostomum reedii (H. Rob.) J.R. Spence species accepted

Ptychostomum rutilans (Brid.) J.R. Spence species accepted

Ptychostomum salinum (I. Hagen ex Limpr.) J.R. Spence species accepted

Ptychostomum schleicheri (DC.) J.R. Spence species accepted

Ptychostomum teres (Lindb.) J.R. Spence species accepted

Ptychostomum warneum (Schwägr. ex Steud.) J.R. Spence species accepted

Ptychostomum weigelii (Biehler) J.R. Spence species accepted

Ptychostomum subneodamense (Kindb.) J.R. Spence species accepted

Ptychostomum austriacum (Köckinger, Holyoak & Suanjak) D. Bell & Holyoak species accepted

Ptychostomum minii (Podp. ex Guim.) D. Bell & Holyoak species accepted

Ptychostomum pacificum J.R. Spence & Shevock species accepted

Ptychostomum eatonii (Mitt.) Ochyra & Bedn.-Ochyra species accepted

Ptychostomum mucronatum (Mitt.) Ochyra & Bedn.-Ochyra species accepted

Ptychostomum vermigerum (Arnell & C.E.O. Jensen) J.R. Spence species accepted

Ptychostomum revolutum (Müll. Hal.) Ochyra & Bedn.-Ochyra species accepted

Ptychostomum nivale (Müll. Hal.) Ochyra & Bedn.-Ochyra species accepted

Ptychostomum dicarpum (E.B. Bartram) J.R. Spence species accepted

Ptychostomum hawaiicum (Hoe) J.R. Spence species accepted

Ptychostomum kerguelense (Mitt.) Ochyra & Bedn.-Ochyra species accepted

Ptychostomum sibiricum (Lindb. & Arnell) J.R. Spence species accepted

Ptychostomum zeballosicum (Cardot & Broth.) Ochyra & Bedn.-Ochyra species accepted

Ptychostomum vernicosum (Dusén) J.R. Spence species accepted

Ptychostomum donatii (Thér.) Ochyra & Bedn.-Ochyra species accepted

Ptychostomum gayanum (Mont.) Ochyra & Bedn.-Ochyra species accepted

Ptychostomum chorizodontum (Cardot & Broth.) J.R. Spence species accepted

Ptychostomum lamprochaete (Dusén) J.R. Spence species accepted

Ptychostomum pauperculum (E.B. Bartram) J.R. Spence species accepted

Ptychostomum pseudotriquetrum (Hedw.) J.R. Spence & H.P. Ramsay species accepted