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 |
|---|---|---|---|
| Hugonia orientalis | Engl. | 18 | documented |
| Hugonia poilanei | Tardieu | 6 | documented |
| Hugonia griffithiana | (Planch.) Byng & Christenh. | 3 | documented |
| Hugonia mystax | L. | 2 | below the evidence gate |
| Hugonia longipes | H.Perrier | 1 | below the evidence gate |
| Hugonia afzelii | R.Br. ex Planch. | 0 | below the evidence gate |
| Hugonia angustifolia | (Stapf) Byng & Christenh. | 0 | below the evidence gate |
| Hugonia batesii | De Wild. | 0 | below the evidence gate |
| Hugonia belli | Sedgw. | 0 | below the evidence gate |
| Hugonia brewerioides | Baker | 0 | below the evidence gate |
| Hugonia castanea | Baill. | 0 | below the evidence gate |
| Hugonia castaneifolia | Engl. | 0 | below the evidence gate |
| Hugonia costata | Miq. | 0 | below the evidence gate |
| Hugonia coursiana | H.Perrier | 0 | below the evidence gate |
| Hugonia deplanchei | (Stapf) Vieill. ex Guillaumin | 0 | below the evidence gate |
| Hugonia elliptica | N.Robson | 0 | below the evidence gate |
| Hugonia ferruginea | Wight & Arn. | 0 | below the evidence gate |
| Hugonia gabunensis | Engl. | 0 | below the evidence gate |
| Hugonia gilletii | De Wild. | 0 | below the evidence gate |
| Hugonia gossweileri | Baker f. & Exell | 0 | below the evidence gate |
| Hugonia grandiflora | N.Robson | 0 | below the evidence gate |
| Hugonia jenkinsii | F.Muell. | 0 | below the evidence gate |
| Hugonia johannensis | H.Perrier | 0 | below the evidence gate |
| Hugonia latifolia | (Vieill.) Schltr. | 0 | below the evidence gate |
| Hugonia macrocarpa | Welw. | 0 | below the evidence gate |
| Hugonia macrophylla | Oliv. | 0 | below the evidence gate |
| Hugonia magnifolia | (Stapf) Byng & Christenh. | 0 | below the evidence gate |
| Hugonia mayumbensis | Exell | 0 | below the evidence gate |
| Hugonia micans | Engl. | 0 | below the evidence gate |
| Hugonia montana | Pierre | 0 | below the evidence gate |
| Hugonia obtusifolia | C.H.Wright | 0 | below the evidence gate |
| Hugonia oreogena | Schltr. | 0 | below the evidence gate |
| Hugonia papillosa | Guillaumin | 0 | below the evidence gate |
| Hugonia penicillanthemum | Baill. ex Pancher & Sebert | 0 | below the evidence gate |
| Hugonia planchonii | Hook.f. | 0 | below the evidence gate |
| Hugonia platysepala | Welw. ex Oliv. | 0 | below the evidence gate |
| Hugonia racemosa | (Vieill.) Schltr. | 0 | below the evidence gate |
| Hugonia reticulata | Engl. | 0 | below the evidence gate |
| Hugonia rufopilis | A.Chev. ex Hutch. & Dalziel | 0 | below the evidence gate |
| Hugonia sapinii | De Wild. | 0 | below the evidence gate |
| Hugonia serrata | Lam. | 0 | below the evidence gate |
| Hugonia sphaerocarpa | Baill. | 0 | below the evidence gate |
| Hugonia spicata | Oliv. | 0 | below the evidence gate |
| Hugonia talbotii | De Wild. | 0 | below the evidence gate |
| Hugonia tomentosa | Cav. | 0 | below the evidence gate |
| Hugonia villosa | Engl. | 0 | below the evidence gate |
| Hugonia viscosa | (Stapf) Byng & Christenh. | 0 | below the evidence gate |
| Hugonia vitiensis | (Stapf) Byng & Christenh. | 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.