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 Sort ascending | Authority | Is Current Name? | Current Taxon Name | Synonyms | BLS Number | Comments | Conservation Evaluation | Group | Account & Map |
|---|---|---|---|---|---|---|---|---|---|---|
| 691 | Trapelia elacista | (Ach.) Orange (2018) | Yes | Trapelia elacista | 2710 | NE | Trapelia elacista | |||
| 692 | Trapelia corticola | Coppins & P. James (1984) | Yes | Trapelia corticola | 1581 | LC | Trapelia corticola | |||
| 693 | Trapelia collaris | Orange (2018) | Yes | Trapelia collaris | 2709 | NE | ||||
| 694 | Trapelia coarctata | (Sm.) M. Choisy (1932) | Yes | Trapelia coarctata | Lecidea coarctata | 1431 | LC | Trapelia coarctata | ||
| 695 | Trachylia tympanella | (Ach.) Fr. | No | Calicium inquinans | 474 | LC | ||||
| 696 | Trachylia tigillaris | (Ach.) Fr. | No | Calicium tigillare | 476 | NT NR Sc | ||||
| 697 | Trachylia stigonella | auct. brit., non (Ach.) Fr. | No | Acolium sessile | 1545 | LC NS | LF | |||
| 698 | Torula cyanescens | Kalchbr. | No | Kalchbrenneriella cyanescens | 2329 | LC | LF | |||
| 699 | Tornabenia atlantica | (Ach.) Kurok. | No | Tornabea scutellifera | 1430 | Ex | ||||
| 700 | Tornabea scutellifera | (With.) J.R. Laundon (1984) | Yes | Tornabea scutellifera | Tornabenia atlantica | 1430 | Ex | Tornabea scutellifera | ||
| 701 | Topeliopsis azorica | (P. James & Purvis) Coppins & Aptroot (2008) | Yes | Topeliopsis azorica | Ramonia azorica | 2420 | EN D NR Sc | Topeliopsis azorica | ||
| 702 | Toniniopsis verrucarioides | (Nyl.) Kistenich, Timdal, Bendiksby & S. Ekman (2018) | Yes | Toniniopsis verrucarioides | Toninia cervina; Toninia kolax; Toninia verrucarioides | 1418 | LC NS | Toniniopsis verrucarioides | ||
| 703 | Toniniopsis subincompta | auct. | No | Toniniopsis separablis | 168 | VU C, D1 NS P Eng Sc | ||||
| 704 | Toniniopsis separabilis | (Nyl.) Gerasimova & A. Beck (2021) | Yes | Toniniopsis separabilis | Bacidia affinis; Bacidia subincompta auct.; Toniniopsis subincompta auct. | 168 | VU C, D1 NS P Eng Sc | Toniniopsis separabilis | ||
| 705 | Toniniopsis mesoidea | (Nyl.) Timdal (2018) | Yes | Toniniopsis mesoidea | Toninia mesoidea | 1423 | LC NS | Toniniopsis mesoidea | ||
| 706 | Toniniopsis inornata | (Nyl.) S. Ekman & Coppins (2021) | Yes | Toniniopsis inornata | Bacidia inornata | 2636 | NE NR | Toniniopsis inornata | ||
| 707 | Toniniopsis fusispora | (Hepp ex Körb.) Cl. Roux (2020) | Yes | Toniniopsis fusispora | Toninia fusispora | 1577 | LC NR Sc | Toniniopsis fusispora | ||
| 708 | Toniniopsis coprodes | (Körb.) S. Ekman & Coppins | Yes | Toniniopsis coprodes | Bacidia coprodes | 2635 | NE NR | Toniniopsis coprodes | ||
| 709 | Toniniopsis coelestina | (Anzi) Kistenich, Timdal, Bendiksby & S. Ekman (2018) | Yes | Toniniopsis coelestina | Toninia coelestina; Toninia oribata | 1424 | VU D1, D2 NR Sc | Toniniopsis coelestina | ||
| 710 | Toniniopsis bagliettoana | (A. Massal. & De Not.) Kistenich & Timdal (2021) | Yes | Toniniopsis bagliettoana | Bacidia bagliettoana; Bacidia muscorum | 158 | LC | Toniniopsis bagliettoana | ||
| 711 | Toniniopsis aromatica | (Sm.) Kistenich, Timdal, Bendiksby & S. Ekman (2018) | Yes | Toniniopsis aromatica | Toninia aromatica | 1415 | LC | Toniniopsis aromatica | ||
| 712 | Toninia verrucarioides | (Nyl.) Timdal (1991) | No | Toniniopsis verrucarioides | 1418 | LC NS | ||||
| 713 | Toninia verrucariae | (Metzler ex Nyl.) Timdal (1992) | Yes | Toninia verrucariae | 2550 | NE NR | LF | |||
| 714 | Toninia turneri | (Leight.) H. Olivier (1911) | No | Toniniopsis aromatica | 1415 | LC | ||||
| 715 | Toninia tumidula | (Sm.) Zahlbr. (1927) [1926] | No | Porpidinia tumidula | 1429 | Ex | ||||
| 716 | Toninia tristis | (Th. Fr.) Th. Fr. | No | incorrectly reported from the British Isles | ||||||
| 717 | Toninia thiopsora | (Nyl.) H. Olivier (1911) | Yes | Toninia thiopsora | Toninia pulvinata | 1425 | LC NS | Toninia thiopsora | ||
| 718 | Toninia syncomista | (Flörke) Th. Fr. | No | Bilimbia lobulata | 1422 | LC | ||||
| 719 | Toninia subfuscae | (Arnold) Timdal (1991) | Yes | Toninia subfuscae | 2419 | DD NR Sc | LF | Toninia subfuscae | ||
| 720 | Toninia squamulosa | auct. p.p. | No | Bilimbia lobulata | 1422 | LC |