Bryophyta (Bryophytes)
These taxa will be sorted into their respective taxonomic positions at a later date.
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Acritodon nephophilus | H.Rob., 1964 | - | 1966 | Mexico | Extinct | Access |
| Bartramia alaris | Dixon & Sainsbury, 1933 | 1929 | Havelock North, Hawke's Bay district, North Island, New Zealand & New South Wales, Australia | Missing | Access | |
| Bryosporis anisopolaris | Mildenhall & Bussell, 1990 | c.90ka | New Zealand | Extinct | Access | |
| Campylopus extinctus | Frahm, 1996 | - | Brazil | Rediscovered in the wild | Access | |
| Cyathodium acrotrichum | Schiffn. | - | West Bengal, India | Rediscovered | Access | |
| Dicranella circinata | Herzog, 1954 | - | - | Chile | Rediscovered | Access |
| Dicranella lorentzii | (Müll.Hal.) | - | - | Argentina | Invalid (synonym) | Access |
| Fissidens macrosporus | Dixon, 1921 | - | - | Western Ghats, India | Rediscovered | Access |
| Fissidens microstictus | Dixon & Luisier, 1937 | - | 1982 | Madeira Island, Portugal | Extinct | Access |
| Flabellidium spinosum | Herzog (year?) | - | 1911 | Santa Cruz Cordillera, Bolivia | Extinct | Access |
| Grimmia pilosissima | Herzog, 1911 | ? | Sardinia, Italy | Invalid (synonym) | Access | |
| Neomacounia nitida | (Lindb.) Ireland | - | 1864 | Hastings County, Ontario province, Canada | Extinct | Access |
| Nobregaea latinervis | Hedenäs, 1992 | - | 1946 | Madeira Island, Portugal | Extinct | Access |
| Oreoweisia brevidens | Herzog, 1939 | - | Western Ghats, India | Rediscovered | Access | |
| Philonotis brevifolia | Herzog (year?) | - | - | Chile | Rediscovered | Access |
| Pinnatella gollanii | Broth., 1931 | - | India & Nepal | Rediscovered | Access | |
| Pterygoneurum californicum | H. Crum, 1967 | California chalkmoss | ? | Kern County, California, USA | Missing | Access |
| Sorapilla papuana | Broth. & Geh. | - | New Guinea & Queensland, Australia | Rediscovered | Access | |
| Sorapilla sprucei | Mitten, 1869 | 1857 | Ecuador | Missing | Access | |
| Tortella limbata | (Schiffn.) Geh. & Herzog, 1910 | - | Canary Islands & Madeiran Archipelago, Macaronesia | Rediscovered | Access | |
| Trematodon perssoniorum | P.Allorge & Thér. ex V.Allorge | - | São Miguel, Azores | Rediscovered | Access |