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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2101 | Collema crispum var. cristatulum | Nyl. ex Cromb. (1874) | No | Enchylium tenax var. tenax | 459 | LC | ||||
| 2102 | Collema crispum var. metzleri | (Arnold) Degel. (1954) | No | Blennothallia crispa | 440 | no longer a recognized variety | LC | |||
| 2103 | Collema cristatum | sensu Hook in Sm. (1833) | No | Enchylium tenax var. tenax | 459 | LC | ||||
| 2104 | Collema cristatum | (L.) F.H. Wigg. (1780) | No | Lathagrium cristatum | 442 | LC | ||||
| 2105 | Collema cristatum var. marginale | (Huds.) Degel. (1954) | No | Lathagrium cristatum var. marginale | 443 | LC ?NS | ||||
| 2106 | Collema dermatinum | auct. p.p. | No | Lathagrium auriforme | 433 | LC | ||||
| 2107 | Collema dermatinum | auct. p.p. | No | Lathagrium cristatum | 442 | LC | ||||
| 2108 | Collema dichotomum | (With.) Coppins & J.R. Laundon (1984) | No | Lathagrium dichotomum | 446 | VU B NS P Eng Sc Wa S8 | ||||
| 2109 | Collema diffractum | sensu Carroll (1865) | No | Porocyphus coccodes | 1184 | LC NS | ||||
| 2110 | Collema epiphyllum | Leight. | No | Seuratia millardetii | Seuratia millardetii (Racib.) Meeker | F | ||||
| 2111 | Collema fasciculare | sensu Leight. (1879) p.p. | No | Enchylium conglomeratum | 439 | name or specific epithet valid but has been misused in the past | Ex | |||
| 2112 | Collema fasciculare | (L.) F.H. Wigg. (1780) | No | Gabura fascicularis | 444 | NT NS P Sc WaL IR | ||||
| 2113 | Collema flaccidum | (Ach.) Ach. (1810) | Yes | Collema flaccidum | 445 | LC | Collema flaccidum | |||
| 2114 | Collema flaccidum var. microlobum | Nyl. ex Leight. (1871) | No | Lathagrium fuscovirens | 463 | LC | ||||
| 2115 | Collema fluviatile | (Huds.) Steud. (1810) | No | Lathagrium dichotomum | 446 | VU B NS P Eng Sc Wa S8 | ||||
| 2116 | Collema fragile | Taylor (1836) | No | Scytinium fragile | 447 | VU B NS P Eng Sc Wa | ||||
| 2117 | Collema fragrans | (Sm.) Ach. (1814) | No | Scytinium fragrans | 448 | EN A, C NR P Sc Wa IR | ||||
| 2118 | Collema furfuraceum | (Arnold) Du Rietz (1929) | Yes | Collema furfuraceum | 449 | LC L | Collema furfuraceum | |||
| 2119 | Collema furvum | auct. | No | Lathagrium fuscovirens | 463 | LC | ||||
| 2120 | Collema fuscovirens | (With.) J.R. Laundon (1984) | No | Lathagrium fuscovirens | 463 | LC | ||||
| 2121 | Collema glaucescens | Hoffm. (1796) | No | Enchylium limosum | 451 | LC NS Sc | ||||
| 2122 | Collema glebulentum | (Nyl. ex Cromb.) Degel. (1952) | Yes | Collema glebulentum | 450 | LC NS | Collema glebulentum | |||
| 2123 | Collema granosum | (Schreb.) Rabenh. (1845), non DC. (1805) | No | Lathagrium auriforme | 433 | LC | ||||
| 2124 | Collema granosum var. auriculatum | (Hoffm.) Schaer. (1850) | No | Lathagrium auriforme | 433 | LC | ||||
| 2125 | Collema granulatum | sensu Hook. | No | Lathagrium fuscovirens | 463 | LC | ||||
| 2126 | Collema granuliferum | Nyl. (1875) | No | Lathagrium cristatum | 442 | LC | ||||
| 2127 | Collema granuliferum f. meizolobum | (Nyl. ex Cromb.) Nyl. ex Leight. (1879) | No | Lathagrium fuscovirens | 463 | LC | ||||
| 2128 | Collema granuliferum f. minus | Cromb. ex Leight. (1879) | No | Lathagrium cristatum | 442 | as f. minor | LC | |||
| 2129 | Collema hypergenum | Nyl. (1876) | No | Lathagrium cristatum | 442 | LC | ||||
| 2130 | Collema isidioides | Nyl. | No | Lempholemma isidioides | incorrectly reported from the British Isles |