For more information see the Supplementary Notes for the Taxon Dictionary, which explains the names and synonyms, and these Instructions on how to use the online Taxon Dictionary which includes details of the Conservation Evaluation codes.
| Count | Name | Authority | Is Current Name? | Current Taxon Name | Synonyms | BLS Number | Comments | Conservation Evaluation | Group | Account & Map |
|---|---|---|---|---|---|---|---|---|---|---|
| 2131 | Collema melaenum var. jacobaeifolium | (Schrank) Ach. (1810) | No | Lathagrium cristatum var. marginale | 443 | LC ?NS | ||||
| 2132 | Collema melaenum var. marginale | (Huds.) Ach. (1810) | No | Lathagrium cristatum var. marginale | 443 | LC ?NS | ||||
| 2133 | Collema microphyllum | Ach. (1810), non (Sw.) DC. (1805) | No | Scytinium fragrans | 448 | EN A, C NR P Sc Wa IR | ||||
| 2134 | Collema multifidum | (Scop.) Rabenh. | No | Collema cristatum var. cristatum | 442 | LC | ||||
| 2135 | Collema multifidum var. jacobaeifolium | (Schrank) Schaer. (1842) | No | Lathagrium cristatum var. marginale | 443 | LC ?NS | ||||
| 2136 | Collema multipartitum | Sm. (1814) | No | Callome multipartita | 452 | LC NS | ||||
| 2137 | Collema multipartitum var. fluviatile | (Huds.) Taylor (1836) | No | Lathagrium dichotomum | 446 | VU B NS P Eng Sc Wa S8 | ||||
| 2138 | Collema muscicola | (Sw.) Ach. | No | Polychidium muscicola | 1166 | LC NS | ||||
| 2139 | Collema nigrescens | (Huds.) DC. (1805) | Yes | Collema nigrescens | 453 | NT NS Sc | Collema nigrescens | |||
| 2140 | Collema nigrum | (Huds.) Hoffm. (1796) | No | Placynthium nigrum | 1139 | LC | ||||
| 2141 | Collema occultatum | Bagl. (1861) | No | Rostania occultata | 454 | NT NS Sc | ||||
| 2142 | Collema parvum | Degel. (1954) | No | Scytinium parvum | 1751 | VU D NR Sc | ||||
| 2143 | Collema polycarpon | Hoffm. (1796) | No | Enchylium polycarpon | 455 | LC NS | ||||
| 2144 | Collema psorellum | Nyl. | No | Scytinium callopismum var. rhyparodes | 436 | DD NR Sc | ||||
| 2145 | Collema pulposum | (Bernh.) Ach. (1810) | No | Enchylium tenax var. tenax | 459 | LC | ||||
| 2146 | Collema pulposum f. compactum | sensu Leighton (1879) | No | Enchylium tenax var. tenax | 459 | LC | ||||
| 2147 | Collema pulposum f. granulatum | sensu Leight. (1879) | No | ? Enchylium bachmanianum | ||||||
| 2148 | Collema pulposum f. hydrocharum | sensu Leight. (1879) | No | ? Enchylium tenax | ||||||
| 2149 | Collema pulposum var. ceranoides | (Borrer) Leight. (1879) | No | Enchylium tenax var. ceranoides | 460 | LC | ||||
| 2150 | Collema pulposum var. cristatum | sensu Mudd p.p. | No | Enchylium tenax var. tenax | 459 | LC | ||||
| 2151 | Collema pulposum var. limosum | (Ach.) Mudd (1861) | No | Enchylium limosum | 451 | LC NS Sc | ||||
| 2152 | Collema pulposum var. pulposulum | (Nyl.) Wedd. (1869) | No | Enchylium tenax var. tenax | 459 | LC | ||||
| 2153 | Collema pulposum var. tenax | (Sw.) Nyl. (1858) | No | Enchylium tenax var. tenax | 459 | LC | ||||
| 2154 | Collema pulvinatum | Hoffm. (1796) | No | Scytinium pulvinatum | 2530 | LC | ||||
| 2155 | Collema ramulosum | Hoffm. (1796) | No | Synalissa ramulosa | 1379 | VU B NR P Eng Sc Wa | ||||
| 2156 | Collema rupestre | (Sw.) Rabenh. (1845) | No | Collema flaccidum | 445 | LC | ||||
| 2157 | Collema rupestre var. subfurvum | (Müll. Arg.) Zahlbr. | No | Collema subflaccidum | 457 | LC | ||||
| 2158 | Collema ryssoleum | (Tuck.) A. Schneid. | No | incorrectly reported from the British Isles | ||||||
| 2159 | Collema saturninum | (Dicks.) DC. & Lam. (1805) | No | Leptogium saturninum | 844 | VU C2 NS P Eng Sc | ||||
| 2160 | Collema schraderi | (Bernh.) Ach. (1810) | No | Scytinium schraderi | 845 | LC |