Placynthium
{{Short description|Genus of lichens}}
{{Automatic taxobox
| image = Placynthium nigrum 300308b.jpg
| image_caption = Placynthium nigrum
| taxon = Placynthium
| authority = (Ach.) Gray (1821)
| type_species = Placynthium nigrum
| type_species_authority = (Huds.) Gray (1821)
| subdivision_ranks = Species
| subdivision =
| synonyms = *Collema † Placynthium {{small|Ach. (1810)}}
}}
Placynthium is a genus of lichen-forming fungi in the family Placynthiaceae. Members of this genus are commonly called blackthread lichens.[https://plants.usda.gov/java/nameSearch USDA Natural Resources Conservation Service Name Search][http://eol.org/pages/22371/overview Blackthread Lichen (Placynthium), Encyclopedia of Life]
Species
- Placynthium anemoideum {{small|(Servít) Gyeln. (1938)}}
- Placynthium asperellum {{small|(Ach.) Trevis. (1869)}}
- Placynthium australiense {{small|P.M.McCarthy & Kantvilas (2014)}}
- Placynthium caesium {{small|(Ach.) Vain. (1909)}}
- Placynthium filiforme {{small|(Garov.) M.Choisy (1951)}}
- Placynthium flabellosum {{small|(Tuck.) Zahlbr. (1925)}}
- Placynthium garovaglii {{small|(A.Massal.) Malme (1918)}}
- Placynthium glaciale {{small|Fryday & T.Sprib. (2020)}}
- Placynthium hungaricum {{small|Gyeln. (1939)}}
- Placynthium lismorense {{small|(Cromb.) Vain. (1909)}}
- Placynthium majus {{small|Harm. (1913)}}
- Placynthium nigrum {{small|(Huds.) Gray (1821)}}
- Placynthium pannariellum {{small|(Nyl.) H.Magn. (1936)}}
- Placynthium petersii {{small|(Nyl.) Burnham (1922)}}
- Placynthium pluriseptatum {{small|(Arnold) Arnold (1889)}}
- Placynthium posterulum {{small|(Nyl.) Henssen (2007)}}
- Placynthium pulvinatum {{small|Øvstedal (2009)}}
- Placynthium subradiatum {{small|(Nyl.) Arnold (1884)}}
- Placynthium tantaleum {{small|(Hepp) Hue (1906)}}
- Placynthium tremniacum {{small|(A.Massal.) Jatta (1900)}}
References
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{{Taxonbar|from=Q10632594}}
Category:Taxa named by Erik Acharius
Category:Taxa described in 1810
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