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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1831 | Cladonia arbuscula subsp. mitis | (Sandst.) Ruoss | No | Cladonia mitis | 402 | NT NR Sc | ||||
| 1832 | Cladonia arbuscula subsp. squarrosa | (Wallr.) Ruoss (1987) | Yes | Cladonia arbuscula subsp. squarrosa | Cladina arbuscula p.max.p. Cladonia arbuscula p.max.p. Cladonia sylvatica auct. p.p. |
360 | This is the common subspecies | LC | Cladonia arbuscula subsp. squarrosa | |
| 1833 | Cladonia asahinae | J.W. Thomson (1977) [1976] | Yes | Cladonia asahinae | 1747 | a member of the C. grayi complex | NE NR | Cladonia asahinae | ||
| 1834 | Cladonia azorica | Ahti (1961) | Yes | Cladonia azorica | 1580 | seemingly a chemotype of Cladonia portentosa | LC NS | Cladonia azorica | ||
| 1835 | Cladonia bacillaris | (Leight.) Arnold | No | Cladonia macilenta | 396 | Cladonia macilenta s. lat. | LC | CR | ||
| 1836 | Cladonia bacillaris | (Ach.) Genth (1835) | Yes | Cladonia bacillaris | 361 | chemical race of C. macilenta | CR | Cladonia bacillaris | ||
| 1837 | Cladonia bellidiflora | (Ach.) Schaer. (1823) | Yes | Cladonia bellidiflora | 362 | LC | Cladonia bellidiflora | |||
| 1838 | Cladonia bellidiflora var. subuliformis | (Wallr.) Rabenh. (1845) | No | Cladonia bellidiflora | 362 | LC | ||||
| 1839 | Cladonia borealis | S. Stenroos (1989) | Yes | Cladonia borealis | 1748 | DD NR | Cladonia borealis | |||
| 1840 | Cladonia botrytes | (K.G. Hagen) Willd. (1787) | Yes | Cladonia botrytes | 363 | CR A NS P Sc | Cladonia botrytes | |||
| 1841 | Cladonia brevis | auct. brit. | No | Cladonia strepsilis | 420 | LC | ||||
| 1842 | Cladonia brevis | (Sandst.) Sandst. (1922) | Yes | Cladonia brevis | 2819 | NE NR | Cladonia brevis | |||
| 1843 | Cladonia caespiticia | (Pers.) P. Gaertn., B. Mey & Scherb. (1802) | Yes | Cladonia caespiticia | 364 | LC | Cladonia caespiticia | |||
| 1844 | Cladonia callosa | Delise ex Harm. (1907) | Yes | Cladonia callosa | Cladonia fragilissima | 388 | LC NS | Cladonia callosa | ||
| 1845 | Cladonia capitata | (Michx.) Spreng. | No | Cladonia peziziformis | 365 | CR A NR P Eng Sc Wa | ||||
| 1846 | Cladonia cariosa | (Ach.) Spreng. (1827) | Yes | Cladonia cariosa | 366 | LC NS | Cladonia cariosa | |||
| 1847 | Cladonia carneola | (Fr.) Fr. (1831) | Yes | Cladonia carneola | 367 | LC NS | Cladonia carneola | |||
| 1848 | Cladonia cenotea | (Ach.) Schaer. (1823) | Yes | Cladonia cenotea | 368 | NT NR Sc | Cladonia cenotea | |||
| 1849 | Cladonia cenotea var. glauca | (Flörke) Leight. | No | Cladonia glauca | 391 | LC | ||||
| 1850 | Cladonia cervicornis | (Ach.) Flot. (1849) | Yes | Cladonia cervicornis | 369 | LC | Cladonia cervicornis | |||
| 1851 | Cladonia cervicornis subsp. cervicornis | (Ach.) Flot. (1849) | No | Cladonia cervicornis | 369 | LC | ||||
| 1852 | Cladonia cervicornis subsp. pulvinata | (Sandst.) Ahti (1983) | No | Cladonia pulvinata | 308 | NE NR Sc | ||||
| 1853 | Cladonia cervicornis subsp. verticillata | (Hoffm.) Ahti (1980) | No | Cladonia verticillata | 370 | LC | ||||
| 1854 | Cladonia cervicornis var. subcervicornis | Vain. | No | Cladonia subcervicornis | 421 | LC | ||||
| 1855 | Cladonia chlorophaea s. lat. | s. lat. | Yes | Cladonia chlorophaea s. lat. | 371 | LC | Cladonia chlorophaea s. lat. | |||
| 1856 | Cladonia chlorophaea s. str. | (Flörke ex Sommerf.) Spreng. s. str. (1827) | Yes | Cladonia chlorophaea s. str. | 2356 | chemical race of C. chlorophaea | LC | CR | Cladonia chlorophaea s. str. | |
| 1857 | Cladonia ciliata f. flavicans | (Flörke) Ahti & DePriest | No | Cladonia ciliata var. tenuis | 373 | LC | ||||
| 1858 | Cladonia ciliata var. ciliata | Stirt. (1888) | Yes | Cladonia ciliata var. ciliata | Cladina ciliataCladonia leucophaea | 372 | grey (usnic acid-lacking) race | LC | CR | Cladonia ciliata var. ciliata |
| 1859 | Cladonia ciliata var. tenuis | (Flörke) Ahti (1993) | Yes | Cladonia ciliata var. tenuis | Cladina tenuis Cladonia sylvatica auct. p.p. Cladonia tenuis |
373 | yellow-green (usnic acid-containing) race | LC | CR | Cladonia ciliata var. tenuis |
| 1860 | Cladonia coccifera f. cornucopioides | auct. brit. | No | Cladonia coccifera s. lat. | 374 |