Acanthothecis

Acanthothecis is a genus of lichen-forming fungi in the family Graphidaceae. The genus was circumscribed by Frederick Edward Clements in 1909.

Species
, Species Fungorum (in the Catalogue of Life) accepts 56 species of Acanthothecis.


 * Acanthothecis abaphoides (Nyl.) Staiger & Kalb (1999)
 * Acanthothecis adjuncta Welz & Sipman (2014)
 * Acanthothecis africana Staiger & Kalb (2002)
 * Acanthothecis alba Herrera-Camp., Barcenas-Peña & Lücking (2019) – Mexico
 * Acanthothecis aquilonia A.W.Archer & Elix (2008) – Australia
 * Acanthothecis archeri B.O.Sharma, Makhija & Khadilkar (2010) – India
 * Acanthothecis asprocarpa (A.W.Archer) A.W.Archer (2007)
 * Acanthothecis aurantiaca (Müll. Arg.) Staiger & Kalb (2002)
 * Acanthothecis aurantiacodiscus Weerakoon, Lücking & Lumbsch (2014)
 * Acanthothecis bicellularis (Sipman & Lücking) Lücking (2022) – Brazil
 * Acanthothecis bicellulata Staiger & Kalb (2022) – Brazil
 * Acanthothecis borealis A.W.Archer & Elix (2007) – Australia
 * Acanthothecis celata B.O.Sharma, Makhija & Khadilkar (2010) – India
 * Acanthothecis coccinea B.O.Sharma, Makhija & Khadilkar (2010) – India
 * Acanthothecis collateralis Makhija & Adaw. (2007) – India
 * Acanthothecis dialeuca (Kremp.) Staiger & Kalb (2002)
 * Acanthothecis dialeucoides Kalb & Staiger (2009) – Thailand
 * Acanthothecis farinosa Staiger & Kalb (2022) – Brazil
 * Acanthothecis floridana Lendemer & R.C.Harris (2014) – United States
 * Acanthothecis floridensis Seavey & J.Seavey (2017) – United States
 * Acanthothecis fontana Muscavitch & Lendemer (2016) – United States
 * Acanthothecis gracilis Staiger & Kalb (1999)
 * Acanthothecis gyridia (Stirt.) A.W.Archer (2005)
 * Acanthothecis kalbii Dal-Forno & Eliasaro (2009)
 * Acanthothecis latispora Feuerstein & Silveira (2022) – Brazil
 * Acanthothecis leucopepla (Tuck.) E.A.Tripp & Lendemer (2010)
 * Acanthothecis leucoxanthoides Lendemer (2014) – United States
 * Acanthothecis maritima van den Boom & Sipman (2013) – Panama
 * Acanthothecis megalospora Feuerstein & Lücking (2022) – Brazil
 * Acanthothecis mosquitensis (Tuck.) E.A.Tripp & Lendemer (2010)
 * Acanthothecis multiseptata Aptroot, Lücking & M.Cáceres (2022) – Brazil
 * Acanthothecis nivalis Makhija & Adaw. (2003) – India
 * Acanthothecis norstictica Aptroot, Lücking & M.Cáceres (2022) – Brazil
 * Acanthothecis oryzoides Aptroot, Lücking & M.Cáceres (2022) – Brazil
 * Acanthothecis pachygraphoides (Vain.) Clem. (1909)
 * Acanthothecis paucispora Lendemer & R.C.Harris (2014) – United States
 * Acanthothecis peplophora (M.Wirth & Hale) E.A.Tripp & Lendemer (2010)
 * Acanthothecis poitaeoides (Nyl. ex Tuck.) E.A.Tripp & Lendemer (2010)
 * Acanthothecis pruinocarpa Dal-Forno & Eliasaro (2009)
 * Acanthothecis rimosa Aptroot, Lücking & M.Cáceres (2022) – Brazil
 * Acanthothecis rosea (Vain.) Staiger & Kalb (2002)
 * Acanthothecis roseola Feuerstein (2022) – Brazil
 * Acanthothecis salazinica van den Boom & Sipman (2013) – Panama
 * Acanthothecis sarcographoides M.Cáceres & Lücking (2013) – Brazil
 * Acanthothecis saxicola Aptroot, Lücking & M.Cáceres (2022) – Brazil
 * Acanthothecis socotrana (Müll.Arg.) Staiger & Kalb (2002)
 * Acanthothecis subabaphoides Staiger & Kalb (2022) – Brazil
 * Acanthothecis subaggregans (Müll.Arg.) A.W.Archer (2005)
 * Acanthothecis subclavulifera Staiger & Kalb (2002)
 * Acanthothecis subconsocians Pooja Gupta & G.P.Sinha (2015) – India
 * Acanthothecis subfarinosa Feuerstein (2022) – Brazil
 * Acanthothecis submuriformis Aptroot, Lücking & M.Cáceres (2022) – Brazil
 * Acanthothecis tetraphora (Nyl.) Staiger & Kalb (1999)
 * Acanthothecis verrucosa S.Joshi, Upreti & Hur (2017) – Vietnam
 * Acanthothecis virgulicola Kantvilas (2010) – Tasmania
 * Acanthothecis yokdonensis S.Joshi & Hur (2017) – Vietnam

Former species; A. salazinica = Acanthothecis yokdonensis