Every accepted species in the genus is listed. A name links to its page when we hold at least three commercially licensed photographs of it. Where we do not, the row shows how many we actually found, which is usually none.
| Species | Authority | Usable photographs | Page |
|---|---|---|---|
| Ptychostomum pseudotriquetrum | (Hedw.) J.R.Spence & H.P.Ramsay | 195 | documented |
| Ptychostomum imbricatulum | (Müll.Hal.) Holyoak & N.Pedersen | 64 | documented |
| Ptychostomum pallens | (Sw.) J.R.Spence | 55 | documented |
| Ptychostomum weigelii | (Biehler) J.R.Spence | 17 | documented |
| Ptychostomum schleicheri | (DC.) J.R.Spence | 5 | documented |
| Ptychostomum altisetum | (Müll.Hal.) J.R.Spence & H.P.Ramsay | 0 | below the evidence gate |
| Ptychostomum archangelicum | (Bruch & Schimp.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum arcticum | (R.Br.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum austriacum | (Köckinger, Holyoak & Suanjak) D.Bell & Holyoak | 0 | below the evidence gate |
| Ptychostomum axel-blyttii | (Kaurin ex H.Philib.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum bimum | (Schreb.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum bryoides | (R.Br.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum calophyllum | (R.Br.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum cernuum | (Hedw.) Hornsch. | 0 | below the evidence gate |
| Ptychostomum chorizodontum | (Cardot & Broth.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum compactum | Hornsch. | 0 | below the evidence gate |
| Ptychostomum creberrimum | (Taylor) J.R.Spence & H.P.Ramsay | 0 | below the evidence gate |
| Ptychostomum cryophilum | (Mårtensson) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum cyclophyllum | (Schwägr.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum cylindrothecium | (R.Br.bis) J.R.Spence & H.P.Ramsay | 0 | below the evidence gate |
| Ptychostomum dicarpum | (E.B.Bartram) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum donatii | (Thér.) Ochyra & Bedn.-Ochyra | 0 | below the evidence gate |
| Ptychostomum eatonii | (Mitt.) Ochyra & Bedn.-Ochyra | 0 | below the evidence gate |
| Ptychostomum funkii | (Schwägr.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum gayanum | (Mont.) Ochyra & Bedn.-Ochyra | 0 | below the evidence gate |
| Ptychostomum hawaiicum | (Hoe) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum inclinatum | (Sw. ex Brid.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum intermedium | (Brid.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum kerguelense | (Mitt.) Ochyra & Bedn.-Ochyra | 0 | below the evidence gate |
| Ptychostomum knowltonii | (Barnes) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum kunzei | (Hornsch.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum lamprochaete | (Dusén) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum lonchocaulon | (Müll.Hal.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum longisetum | (Blandow ex Schwägr.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum marratii | (Hook. & Wilson) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum meesioides | (Kindb.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum minii | (Podp. ex Guim.) D.Bell & Holyoak | 0 | below the evidence gate |
| Ptychostomum mucronatum | (Mitt.) Ochyra & Bedn.-Ochyra | 0 | below the evidence gate |
| Ptychostomum neodamense | (Itzigs.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum nivale | (Müll.Hal.) Ochyra & Bedn.-Ochyra | 0 | below the evidence gate |
| Ptychostomum orthothecium | (Cardot & Broth.) Holyoak & N.Pedersen | 0 | below the evidence gate |
| Ptychostomum pacificum | J.R.Spence & Shevock | 0 | below the evidence gate |
| Ptychostomum pallescens | (Schleich. ex Schwägr.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum pauperculum | (E.B.Bartram) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum reedii | (H.Rob.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum revolutum | (Müll.Hal.) Ochyra & Bedn.-Ochyra | 0 | below the evidence gate |
| Ptychostomum rutilans | (Brid.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum salinum | (I.Hagen ex Limpr.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum sibiricum | (Lindb. & Arnell) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum subneodamense | (Kindb.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum teres | (Lindb.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum touwii | Bijlsma, Kruijer & M.Stech | 0 | below the evidence gate |
| Ptychostomum turbinatum | (Hedw.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum vermigerum | (Arnell & C.E.O.Jensen) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum vernicosum | (Dusén) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum warneum | (Schwägr. ex Steud.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum wrightii | (Sull. & Lesq.) J.R.Spence | 0 | below the evidence gate |
| Ptychostomum zeballosicum | (Cardot & Broth.) Ochyra & Bedn.-Ochyra | 0 | below the evidence gate |
This site is commercial, so it can only publish photographs licensed for commercial use. Roughly three quarters of the photographs on iNaturalist are CC BY-NC, which excludes them. A species needs at least three usable photographs before we will build it a page, because a page with one picture and no traits tells you nothing you could not get from a search result, and generating hundreds of thousands of those is precisely the practice that got the previous version of this site deleted.
So the species above without a link are not errors and they are not omissions. They are real, accepted plants that we cannot yet document to the standard we hold ourselves to, and the count in the photographs column is exactly how far short we fall.