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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3031 | Helmutiopsis aspersa | (Borrer) S.Y. Kondr., L. Lőkös & J.-S. Hur (2021) | No | Rinodina aspersa | 201 | NT NR Sc | ||||
| 3032 | Helmutiopsis atrocinerea | (Fr.) S. Y. Kondr., L. Lőkös & J.-S. Hur | No | Rinodina atrocinerea | 1281 | LC | ||||
| 3033 | Helocarpon crassipes | Th. Fr. | No | Micarea crassipes | 1661 | currently a synonym but may be adopted as the correct name in the future | VU D2 NR Sc | |||
| 3034 | Helotium cambricum | W. Phillips (nom. inval.) | No | Coenogonium luteum | 490 | LC L* | ||||
| 3035 | Hemigrapha astericus | auct. brit. | No | Hemigrapha atlantica | 2307 | NT NR | LF | |||
| 3036 | Hemigrapha atlantica | Diederich & Wedin (2000) | Yes | Hemigrapha atlantica | Hemigrapha astericus auct. brit. | 2307 | NT NR | LF | Hemigrapha atlantica | |
| 3037 | Henrica melaspora | (Taylor) Savić & Tibell (2008) | Yes | Henrica melaspora | Polyblastia melaspora; Polyblastia scotinospora | 1158 | LC NS | Henrica melaspora | ||
| 3038 | Henrica theleodes | (Sommerf.) Savić, Tibell & Nav.-Ros. (2008) | Yes | Henrica theleodes | Polyblastia inumbrata p.p.; Polyblastia theleodes sensu auct. brit. p.min.p. | 2495 | Polyblastia theleodes s. str. - non auct. brit. p.max.p. (=Sporodictyon schaererianum) | NE NR | Henrica theleodes | |
| 3039 | Herpotrichiella peltigerae | (Fuckel) D. Hawksw.(1980) | No | Knufia peltigerae | 2723 | NE NR | LF | |||
| 3040 | Herteliana gagei | (Sm.) J.R. Laundon (1980) | Yes | Herteliana gagei | Herteliana taylorii Lecidea taylorii Lecidea gagei |
557 | LC NS | Herteliana gagei | ||
| 3041 | Herteliana phaeops | (Nyl.) P. James ad int. [unpublished name] | No | Lecidea phaeops | 761 | LC | ||||
| 3042 | Herteliana taylorii | (Salwey) P. James (1980) | No | Herteliana gagei | 557 | LC NS | ||||
| 3043 | Hertelidea botryosa | (Fr.) Printzen & Kantvilas (2004) | Yes | Hertelidea botryosa | Lecidea botryosa | 703 | NT NR Sc | Hertelidea botryosa | ||
| 3044 | Heterocephalacria bachmannii | (Diederich & M.S. Christ.) Millanes &Wedin (2016) | No | Zyzygomyces bachmannii | 2239 | LC NR | LF | |||
| 3045 | Heterocephalacria physciacearum | (Diederich) Millanes & Wedin (2016) | No | Zyzygomyces physciacearum | 2240 | LC NS | LF | |||
| 3046 | Heterodermia isidiophora | auct. brit. | No | Heterodermia speciosa | 2348 | CR D NR P Eng | ||||
| 3047 | Heterodermia isidiophora | No | 1656 | BLS number no longer used | ||||||
| 3048 | Heterodermia japonica | auct. brit. p.max.p. | No | Heterodermia obscurata | 560 | |||||
| 3049 | Heterodermia japonica | auct. brit. p.min.p. | No | Heterodermia propagulifera | 2558 | VU D1+2 NR P S8 IR | ||||
| 3050 | Heterodermia leucomela | (L.) Poelt [orth. var.] | No | Heterodermia leucomelos | 558 | EN C2 NR P Eng Wa S8 IR | ||||
| 3051 | Heterodermia leucomelaena | (L.) Poelt [orth. var.] | No | Heterodermia leucomelos | 558 | EN C2 NR P Eng Wa S8 IR | ||||
| 3052 | Heterodermia leucomelos | (L.) Poelt (1965) | Yes | Heterodermia leucomelos | Anaptychia leucomelaena; Heterodermia leucomela; Heterodermia leucomelaena; Leucodermia leucomelos | 558 | EN C2 NR P Eng Wa S8 IR | Heterodermia leucomelos | ||
| 3053 | Heterodermia obscurata | (Nyl.) Trevis. (1869) | Yes | Heterodermia obscurata | Anaptychia obscurata; Heterodermia japonica auct. brit. p.max.p.; Klauskalbia obscurata | 560 | NT NS Sc | Heterodermia obscurata | ||
| 3054 | Heterodermia propagulifera | (Vain.) J.P. Dey (1977) | Yes | Heterodermia propagulifera | Heterodermia japonica auct. brit. p.p. | 2558 | VU D1+2 NR P S8 IR | Heterodermia propagulifera | ||
| 3055 | Heterodermia speciosa | (Wulfen) Trevis. (1868) | Yes | Heterodermia speciosa | 2348 | CR D NR P Eng | Heterodermia speciosa | |||
| 3056 | Heteroplacidium fusculum | (Nyl.) Gueidan & Cl. Roux (2007) | Yes | Heteroplacidium fusculum | 2614 | Heteroplacidium fusculum | ||||
| 3057 | Heterothecium fuscoluteum | (Dicks.) Tuck. | No | Brigantiaea fuscolutea | 186 | NT NR Sc | ||||
| 3058 | Hobsonia christiansenii | B.L. Brady & D. Hawksw. | No | Illosporiopsis christiansenii | 2071 | LC NS | LF | |||
| 3059 | Homostegia piggotii | (Berk. & Broome) P. Karst. (1873) | Yes | Homostegia piggotii | 2072 | LC | LF | Homostegia piggotii | ||
| 3060 | Huilia albocaerulescens | auct. brit. p.p. | No | Porpidia cinereoatra | 562 | LC |