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 |
|---|---|---|---|
| Mariosousa coulteri | (Benth.) Seigler & Ebinger | 41 | documented |
| Mariosousa millefolia | (S.Watson) Seigler & Ebinger | 7 | documented |
| Mariosousa salazarii | (Britton & Rose) Seigler & Ebinger | 6 | documented |
| Mariosousa heterophylla | (Benth.) Seigler & Ebinger | 3 | documented |
| Mariosousa acatlensis | (Benth.) Seigler & Ebinger | 2 | below the evidence gate |
| Mariosousa dolichostachya | (S.F.Blake) Seigler & Ebinger | 2 | below the evidence gate |
| Mariosousa centralis | (Britton & Rose) Seigler & Ebinger | 0 | below the evidence gate |
| Mariosousa compacta | (Rose) Seigler & Ebinger | 0 | below the evidence gate |
| Mariosousa durangensis | (Britton & Rose) Seigler & Ebinger | 0 | below the evidence gate |
| Mariosousa gentryi | Seigler & Ebinger | 0 | below the evidence gate |
| Mariosousa mammifera | (Schltdl.) Seigler & Ebinger | 0 | below the evidence gate |
| Mariosousa russelliana | (Britton & Rose) Seigler & Ebinger | 0 | below the evidence gate |
| Mariosousa sericea | (M.Martens & Galeotti) Seigler & Ebinger | 0 | below the evidence gate |
| Mariosousa usumacintensis | (Lundell) Seigler & Ebinger | 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.