Placynthium

Placynthium is a genus of lichen-forming fungi in the family Placynthiaceae. Members of this genus are commonly called blackthread lichens.

Species

 * Placynthium anemoideum (Servít) Gyeln. (1938)
 * Placynthium asperellum (Ach.) Trevis. (1869)
 * Placynthium australiense P.M.McCarthy & Kantvilas (2014)
 * Placynthium caesium (Ach.) Vain. (1909)
 * Placynthium filiforme (Garov.) M.Choisy (1951)
 * Placynthium flabellosum (Tuck.) Zahlbr. (1925)
 * Placynthium garovaglii (A.Massal.) Malme (1918)
 * Placynthium glaciale Fryday & T.Sprib. (2020)
 * Placynthium hungaricum Gyeln. (1939)
 * Placynthium lismorense (Cromb.) Vain. (1909)
 * Placynthium majus Harm. (1913)
 * Placynthium nigrum (Huds.) Gray (1821)
 * Placynthium pannariellum (Nyl.) H.Magn. (1936)
 * Placynthium petersii (Nyl.) Burnham (1922)
 * Placynthium pluriseptatum (Arnold) Arnold (1889)
 * Placynthium posterulum (Nyl.) Henssen (2007)
 * Placynthium pulvinatum Øvstedal (2009)
 * Placynthium subradiatum (Nyl.) Arnold (1884)
 * Placynthium tantaleum  (Hepp) Hue (1906)
 * Placynthium tremniacum (A.Massal.) Jatta (1900)