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 |
|---|---|---|---|
| Alstonia constricta | F.Muell. | 240 | documented |
| Alstonia scholaris | (L.) R.Br. | 130 | documented |
| Alstonia macrophylla | Wall. ex G.Don | 36 | documented |
| Alstonia longifolia | (A.DC.) Pichon | 27 | documented |
| Alstonia muelleriana | Domin | 22 | documented |
| Alstonia venenata | R.Br. | 20 | documented |
| Alstonia actinophylla | K.Schum. | 4 | documented |
| Alstonia angustiloba | Miq. | 2 | below the evidence gate |
| Alstonia pneumatophora | Backer ex Den Berger | 2 | below the evidence gate |
| Alstonia angustifolia | A.DC. | 0 | below the evidence gate |
| Alstonia annamensis | (Monach.) Sidiy. | 0 | below the evidence gate |
| Alstonia balansae | Guillaumin | 0 | below the evidence gate |
| Alstonia beatricis | Sidiy. | 0 | below the evidence gate |
| Alstonia boonei | De Wild. | 0 | below the evidence gate |
| Alstonia boulindaensis | Boiteau | 0 | below the evidence gate |
| Alstonia breviloba | Sidiy. | 0 | below the evidence gate |
| Alstonia congensis | Engl. | 0 | below the evidence gate |
| Alstonia coriacea | Pancher & S.Moore | 0 | below the evidence gate |
| Alstonia costata | (G.Forst.) R.Br. | 0 | below the evidence gate |
| Alstonia curtisii | King & Gamble | 0 | below the evidence gate |
| Alstonia deplanchei | Van Heurck & Müll.Arg. | 0 | below the evidence gate |
| Alstonia guangxiensis | D.Fang & X.X.Chen | 0 | below the evidence gate |
| Alstonia iwahigensis | Elmer | 0 | below the evidence gate |
| Alstonia lanceolata | Van Heurck & Müll.Arg. | 0 | below the evidence gate |
| Alstonia lanceolifera | S.Moore | 0 | below the evidence gate |
| Alstonia legouixiae | Van Heurck & Müll.Arg. | 0 | below the evidence gate |
| Alstonia lenormandii | Van Heurck & Müll.Arg. | 0 | below the evidence gate |
| Alstonia mairei | H.Lév. | 0 | below the evidence gate |
| Alstonia neriifolia | D.Don | 0 | below the evidence gate |
| Alstonia odontophora | Boiteau | 0 | below the evidence gate |
| Alstonia parkinsonii | (M.Gangop. & Chakrab.) Lakra & Chakrab. | 0 | below the evidence gate |
| Alstonia parvifolia | Merr. | 0 | below the evidence gate |
| Alstonia penangiana | Sidiy. | 0 | below the evidence gate |
| Alstonia quaternata | Van Heurck & Müll.Arg. | 0 | below the evidence gate |
| Alstonia rostrata | C.E.C.Fisch. | 0 | below the evidence gate |
| Alstonia rubiginosa | Sidiy. | 0 | below the evidence gate |
| Alstonia rupestris | Kerr | 0 | below the evidence gate |
| Alstonia sebusii | (Van Heurck & Müll.Arg.) Monach. | 0 | below the evidence gate |
| Alstonia spatulata | Blume | 0 | below the evidence gate |
| Alstonia spectabilis | R.Br. | 0 | below the evidence gate |
| Alstonia sphaerocapitata | Boiteau | 0 | below the evidence gate |
| Alstonia vieillardii | Van Heurck & Müll.Arg. | 0 | below the evidence gate |
| Alstonia vietnamensis | D.J.Middleton | 0 | below the evidence gate |
| Alstonia yunnanensis | Diels | 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.