Cucurbitales
Family: Anisophylleaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Anisophyllea impressinervia | Madani (1993) | 1972 | Malaysia | Missing | Access |
Family: Apodanthaceae
–No subordinate taxa
Family: Begoniaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
|
Begonia aconitifolia |
A.DC. (1859) | - | Uncertain | Rio de Janeiro, Brazil | Extinct in the Wild | Access |
|
Begonia adscendens
|
C.B. Clarke (1889) | (rediscovered) | Manipur, India | Rediscovered | Access | |
| Begonia aliciae | C.E.C.Fisch. (1939) | (rediscovered) | Kerala, Western Ghats, India | Invalid (synonym) | Access | |
|
Begonia anamalayana |
Bedd. (1865) | - | c.1864 | Anamalai hills, Tamil Nadu, India | Invalid (synonym) | Access |
| Begonia brevicaulis | A.DC. (1859) | (rediscovered) | Assam, India | Rediscovered | Access | |
| Begonia bufoderma | L.B.Sm. & Wassh. (1983) | ? | likely Brazil | Extinct in the Wild | Access | |
|
Begonia burkillii |
Dunn (1920) | - | (rediscovered) | Arunachal Pradesh, India | Rediscovered | Access |
|
Begonia canarana |
Miq. (1853) | - | 1851 | Western Ghats, India | Invalid (synonym) | Access |
| Begonia cladocarpoides | Humbert ex Aymonin & Bosser (1983) | 1912 | Toamasina province, Madagascar | Missing | Access | |
| Begonia cowellii | Nash (1916) | ? | Cuba | Extinct | Access | |
| Begonia eciliata | O.E.Schulz. (1911) | pre-1911 | Trinidad & Tobago | Missing | Access | |
| Begonia eiromischa | Ridl. (1917) | Woolly-stalked begonia | November 1898 | Penang Island, Malaysia | Extinct | Access |
| Begonia elatostematoides | Merr. (1912) | (rediscovered) | Mindanao, Philippines | Rediscovered | Access | |
| Begonia fasciculata | Jack (1822) | (rediscovered) | Sumatra, Indonesia | Rediscovered | Access | |
| Begonia fischeri | Schrank (1820) | (rediscovered) | Carribean, Central America & South America | Rediscovered (taxonomically) | Access | |
|
Begonia hymenophylloides |
Kingdon-Ward ex L.B.Sm. & Wassh. (1984) | - | (rediscovered) | China & Myanmar (=Burma) | Rediscovered | Access |
| Begonia jocelinoi | Brade (1954) | (rediscovered) | Atlantic Forest, Brazil | Rediscovered | Access | |
| Begonia kingdon-wardii | Tebbitt (2007) | (rediscovered) | Myanmar (=Burma) | Rediscovered | Access | |
| Begonia linearifolia | J.Sierra (1993 "1991") | ? | Cuba | Extinct | Access | |
| Begonia macrotis | Vis. (1858-1859) | ? | Malesia(?) | Extinct | Access | |
| Begonia morelii | Irmsch. ex Kareg. (1975) | ? | Tropical Asia(?) | Extinct | Access | |
| Begonia parvilimba | Merr. (1925) | (rediscovered) | Mindanao, Indonesia | Rediscovered | Access | |
| Begonia promethea | Ridl. (1906) | (rediscovered) | Borneo, Indonesia | Rediscovered | Access | |
| Begonia rajah | R.Hogg. (1894) | (rediscovered) | Malaysia | Rediscovered in the Wild | Access | |
|
Begonia sublongipes |
Y.M.Shui (2004) | - | ? | Hainan, China | Extinct | Access |
| Begonia tessaricarpa | C.B.Clarke (1879) | (rediscovered) | Upper Subansiri district, Arunachal Pradesh, India | Rediscovered | Access | |
| Begonia trichocarpa | Dalzell (1851) | Hairy-fruit begonia | (rediscovered) | India | Rediscovered | Access |
| Begonia trullifolia | Guillaumin (1923) | ? | Madagascar(?) | Extinct in the Wild | Access | |
|
Begonia wattii |
C.B.Clarke (1889) | - | - | India | Erroneously listed as possibly extinct | Access |
|
Begonia wengeri |
C.E.C.Fisch. (1932) | - | August 1831 | Mizoram, India | Missing | Access |
Family: Coriariaceae
–No subordinate taxa
Family: Corynocarpaceae
–No subordinate taxa
Family: Cucurbitaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cucumis ritchiei | (C.B.Clarke) Ghebret. & Thulin (2007) | (rediscovered) | Kerala, India | Rediscovered | Access | |
|
Sicyos hillebrandii
|
H.St.John (1934) | Maui burr cucumber, Maui bur cucumber | ? | Maui, Hawaiian Islands, USA | Extinct | Access |
| Sicyos villosus | Hook.f. (1847) | 1835 | Floreana, Galápagos Islands, Ecuador | Extinct | Access | |
|
Trichosanthes integrifolia |
Thwaites (1859) | - | - | Myanmar & Sri Lanka | Erroneously listed as Possibly Extinct | Access |
Family: Datiscaceae
–No subordinate taxa
Family: Tetramelaceae
–No subordinate taxa
Appendix 1: Possible additions to the list above
Begonia canarana (India)