Lichen Taxon Dictionary

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
6601 Placodium plumbeum (Lightf.) Hook. No Degelia plumbea 1029 LC L IR
6602 Placodium pollinii (A. Massal.) A.L. Sm. (2018) No Huneckia pollinii 274 Ex
6603 Placodium pusillum sensu auct. brit. No Calogaya oblitterata 236 LC
6604 Placodium pusillum auct. brit. No Calogaya pusilla 277 LC
6605 Placodium pyraceum auct. p.p., non (Ach.) Anzi No Athallia holocarpa s. lat. 261 name or specific epithet valid but has been misused in the past LC
6606 Placodium pyraceum auct. p.p., non (Ach.) Anzi No Flavoplaca oasis 2461 name or specific epithet valid but has been misused in the past LC
6607 Placodium pyraceum f. pictum (Taylor) A.L. Sm. (1918) No Athallia holocarpa s. lat. 261 LC
6608 Placodium pyraceum var. holocarpum (Hoffm.) Anzi (1868) No Athallia holocarpa s. lat. 261 LC
6609 Placodium pyraceum var. lacteum auct. brit. non (A. Massal.) A.L. Sm. No Caloplaca marmorata 264 LC
6610 Placodium pyraceum var. pyrithromum (Ach.) A.L. Sm. (1918) No Athallia holocarpa s. lat. 261 LC
6611 Placodium refellens (Nyl.) A.L. Sm. No Caloplaca obscurella 271 LC
6612 Placodium rupestre (Scop.) Branth & Rostr. No Protoblastenia rupestris 1189 LC
6613 Placodium rupestre f. incrustans (DC.) A.L. Sm. No Protoblastenia incrustans 1188 LC
6614 Placodium rupestre var. calvum (Dicks.) A.L. Sm. No Protoblastenia calva 1186 LC
6615 Placodium scopulare (Nyl.) H. Olivier (1909) No Athallia scopularis 278 NT NS
6616 Placodium tetrastichum (Nyl.) H. Olivier No Caloplaca ochracea 272 LC NS Sc
6617 Placodium turnerianum (Ach.) A.L. Sm. (1918) No Kuettlingeria atroflava 237 CR D NR P Wa
6618 Placodium variabile (Pers.) Hepp (1853) No Pyrenodesmia variabilis 284 LC
6619 Placodium variabile var. ecrustaceum Nyl. (1861) No Pyrenodesmia alociza 233 LC NS
6620 Placodium vitellinulum auct. brit. p.max.p. No Caloplaca several Caloplaca spp. with a yellow thallus, name or specific epithet valid but has been misused in the past
6621 Placodium xantholytum (Nyl.) Nyl. (1896) No Leproplaca xantholyta 826 LC
6622 Placopsis gelida auct. brit. p.max.p. No Placopsis lambii 1723 name or specific epithet valid but has been misused in the past LC M*
6623 Placopsis gelida (L.) Linds. (1866) Yes Placopsis gelida 1133 most records refer to P. lambii DD NS Placopsis gelida
6624 Placopsis lambii Hertel & V. Wirth (1987) Yes Placopsis lambii Placopsis gelida auct. p.p. 1723 often mis-recorded as P. gelida LC M* Placopsis lambii
6625 Placopyrenium canellum (Nyl.) Gueidan & Cl. Roux (2007) Yes Placopyrenium canellum Verrucaria aspiciliicola
Verrucaria canella
1478 LC NR Placopyrenium canellum
6626 Placopyrenium cinereoatratum (Degel.) Orange (2009) Yes Placopyrenium cinereoatratum 2531 NE NR Placopyrenium cinereoatratum
6627 Placopyrenium formosum Orange (2009) Yes Placopyrenium formosum Verrucaria crustulosa auct. 2513 DD NR Placopyrenium formosum
6628 Placopyrenium fuscellum (Turner) Gueidan & Cl. Roux (2007) Yes Placopyrenium fuscellum Verrucaria glaucina auct. 1492 LC Placopyrenium fuscellum
6629 Placopyrenium trachyticum (Hazsl.) Breuss (1987) Yes Placopyrenium trachyticum 2704 belongs to var. subtrachyticum Breuss (2009), having 1-septate ascospores NE NR Placopyrenium trachyticum
6630 Placynthiella dasaea (Stirt.) Tønsberg (1992) Yes Placynthiella dasaea 1735 LC Placynthiella dasaea