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 |
|---|---|---|---|
| Hydrobryum puncticulatum | (Koidz.) M.Kato | 5 | documented |
| Hydrobryum austrolaoticum | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum bifoliatum | C.Cusset | 0 | below the evidence gate |
| Hydrobryum chiangmaiense | Mak.Kato | 0 | below the evidence gate |
| Hydrobryum chompuense | Werukamkul, Ampornpan, M.Kato & Koi | 0 | below the evidence gate |
| Hydrobryum clandestinum | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum floribundum | Koidz. | 0 | below the evidence gate |
| Hydrobryum griffithii | (Wall. ex Griff.) Tul. | 0 | below the evidence gate |
| Hydrobryum hapteron | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum japonicum | Imamura | 0 | below the evidence gate |
| Hydrobryum kaengsophense | Mak.Kato | 0 | below the evidence gate |
| Hydrobryum khaoyaiense | Mak.Kato | 0 | below the evidence gate |
| Hydrobryum koribanum | Imamura ex Nakay. & Minamit. | 0 | below the evidence gate |
| Hydrobryum loeicum | Mak.Kato | 0 | below the evidence gate |
| Hydrobryum luangnamtaense | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum mandaengense | Ampornpan, Werukamkul, M.Kato & Koi | 0 | below the evidence gate |
| Hydrobryum micrantherum | (P.Royen) C.D.K.Cook & Rutish. | 0 | below the evidence gate |
| Hydrobryum minutale | (C.Cusset) Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum nakaiense | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum phetchabunense | M.Kato & Koi | 0 | below the evidence gate |
| Hydrobryum phurueanum | Werukamkul, Ampornpan, Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum ramosum | (C.Cusset) Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum somranii | Mak.Kato | 0 | below the evidence gate |
| Hydrobryum stellatum | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum subcrustaceum | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum subcylindricoides | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum subcylindricum | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum taeniatum | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum takakioides | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum tardhuangense | Mak.Kato | 0 | below the evidence gate |
| Hydrobryum varium | Ampornpan, Werukamkul, Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum verrucosum | Koi & M.Kato | 0 | below the evidence gate |
| Hydrobryum vientianense | (M.Kato & Fukuoka) Koi & M.Kato | 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.