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Bacidia
	Bacidia schweinitzii in Augusta, Georgia, USA
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lecanoromycetes
Order:	Lecanorales
Family:	Ramalinaceae
Genus:	Bacidia; De Not. (1846)
Type species
	Bacidia rosella; (Pers.) De Not. (1846)
Synonyms
	Sporacestra A.Massal. (1860); Byssopsora A.Massal. (1861); Thalloidima sect. Psorella Müll.Arg. (1888); Psorella (Müll.Arg.) Müll.Arg. (1894); Urophora Sommerf. ex Arnold (1899); Bacidiomyces Cif. & Tomas. (1953); Lichingoldia D.Hawksw. & Poelt (1986); Woessia D.Hawksw. & Poelt (1986);

Bacidia is a genus of lichen-forming fungi in the family Ramalinaceae. The genus was circumscribed by Giuseppe De Notaris in 1846.^[2]

Characteristics

Species in the genus are crust-like lichens with stemless apothecia; they have green algae (chloroccoid) as photobionts. Their asci have 8 colourless, cylindrical to acicular, multiseptate spores, with curved and thread-like conidia.^[3]

Species

Bacidia absistens (Nyl.) Arnold (1871)
Bacidia albogranulosa Malíček, Palice, Vondrák & Kukwa (2018)
Bacidia alutacea (Kremp.) Zahlbr. (1926)
Bacidia arceutina (Ach.) Arnold (1869)
Bacidia areolata Gerasimova & A.Beck (2018)^[4] – Russian Far East
Bacidia beckhausii Körb. (1860)
Bacidia biatorina (Körb.) Vain. (1922)
Bacidia brigitteae Kantvilas (2017)^[5] – Kangaroo Island
Bacidia caesiovirens S.Ekman & Holien (1995)^[6] – western Europe
Bacidia campbelliae (Müll.Arg.) Zahlbr. (1926)
Bacidia carneoglauca (Nyl.) A.L.Sm. (1911)
Bacidia chrysocolla Olech, Czarnota & Llop (2009)
Bacidia circumspecta (Norrl. & Nyl.) Malme (1895)
Bacidia conspicua (C.Knight) Zahlbr. (1926)
Bacidia convexa (Müll.Arg.) Zahlbr. (1926)
Bacidia cornea (With.) A.Massal. (1852)
Bacidia coruscans S.Ekman (2004)
Bacidia curvispora Coppins & Fryday (2007)
Bacidia cylindrophora (Taylor) Kistenich, Timdal, Bendiksby & S.Ekman (2018)
Bacidia depriestiana Lendemer & Keepers (2021)
Bacidia effusa Trevis. (1856)
Bacidia ekmaniana R.C.Harris, Ladd & Lendemer (2016)^[7]
Bacidia elongata Gerasimova & A.Beck (2018)^[4] – Russian Far East
Bacidia entocosmensis (C.Knight) Zahlbr. (1926)
Bacidia entodiaphana (C.Knight) Zahlbr. (1926)
Bacidia fellhaneroides van den Boom (2018)
Bacidia fluminensis (Malme) M.Cáceres & Lücking (2007)
Bacidia fratruelis (Müll.Arg.) Zahlbr. (1926)
Bacidia friesiana (Hepp) Körb. (1860)
Bacidia furfurella (Müll.Arg.) Zahlbr. (1926)
Bacidia fuscoviridis (Anzi) Lettau (1912)
Bacidia gallowayi Coppins & Fryday (2007)
Bacidia granosa (Tuck.) Zahlbr. (1926)
Bacidia gullahgeechee Lendemer (2018)^[8] – United States
Bacidia heterochroa (Müll.Arg.) Zahlbr. (1926)
Bacidia herbarum (Stizenb.) Arnold (1865)
Bacidia iberica Aragón & I.Martínez (2003)^[9] – Spain
Bacidia johnstoniae Elix (2009)
Bacidia kekesiana R.C.Harris (2009)
Bacidia killiasii (Hepp) D.Hawksw. (1983)
Bacidia kurilensis Gerasimova, A.Ezhkin & A.Beck (2018)^[4] – Russian Far East
Bacidia laurocerasi (Delise ex Duby) Zahlbr. (1926)
Bacidia leucocarpa C.Knight (1880)
Bacidia lithophila Kantvilas (2018)^[10] – Australia
Bacidia littoralis Kantvilas (2018)^[10] – Australia
Bacidia lividofusca (Nyl.) Zahlbr. (1926)
Bacidia lividonigrans (Müll.Arg.) Zahlbr. (1926)
Bacidia lobarica Printzen & Tønsberg (2007)^[11] – United States
Bacidia maccarthyi Kantvilas (2018)^[10] – Australia
Bacidia macquariensis C.W.Dodge (1968)
Bacidia macrospora (C.Knight) Zahlbr. (1926)
Bacidia marina Fryday (2019)^[12] – Falkland Islands
Bacidia microphyllina (Tuck.) Riddle (1923)
Bacidia millegrana (Taylor) Zahlbr. (1888)
Bacidia modestula (Müll.Arg.) Zahlbr. (1926)
Bacidia multicarpa van den Boom (2018)
Bacidia multiseptata (Shirley) Zahlbr. (1926)
Bacidia pallida Darb. (1912)
Bacidia paramedialis M.Brand, Coppins, van den Boom & Sérus. (2009)
Bacidia phyllopsoropsis R.C.Harris & Lendemer (2006)
Bacidia placodioides Coppins & Fryday (2007)
Bacidia polychroa (Th.Fr.) Körb. (1860)
Bacidia prasinata (Zahlbr.) Coppins (1983)
Bacidia pruinata Fryday (2019)^[12] – Falkland Islands
Bacidia punica Llop (2010)
Bacidia purpurans R.C.Harris, Ladd & Lendemer (2016)^[7]
Bacidia pycnidiata Czarnota & Coppins (2006)^[13] – central Europe
Bacidia quadrilocularis Zahlbr. (1926)
Bacidia raffii (Stirt.) Zahlbr. (1926)
Bacidia rhodocardia (Müll.Arg.) Zahlbr. (1926)
Bacidia rosella (Pers.) De Not. (1846)
Bacidia rosellizans S.Ekman (2009)^[14]
Bacidia rubella (Hoffm.) A.Massal. (1852)
Bacidia rudis (Müll.Arg.) Zahlbr. (1926)
Bacidia sachalinensis Gerasimova, A.Ezhkin & A.Beck (2018)^[4] – Russian Far East
Bacidia schweinitzii (Fr. ex Tuck.) A.Schneid. (1898)
Bacidia scopulicola (Nyl.) A.L.Sm. (1911)
Bacidia septosior (Nyl.) Zahlbr. (1926)
Bacidia sigmospora van den Boom & Alvarado (2019)
Bacidia sipmanii M.Brand, Coppins, van den Boom & Sérus. (2009)
Bacidia sorediata Lendemer & R.C.Harris (2016)^[7]
Bacidia squamellosa (S.Ekman) Coppins & Aptroot (2008)
Bacidia subareolata A.H.Ekanayaka & K.D.Hyde (2019)
Bacidia subproposita (Müll.Arg.) Zahlbr. (1926)
Bacidia subturgidula (Nyl.) Zahlbr. (1926)
Bacidia superbula (Müll.Arg.) Zahlbr. (1926)
Bacidia superula (Nyl.) Hellb. (1896)
Bacidia surinamensis van den Boom (2018)
Bacidia termitophila Aptroot & M.Cáceres (2014)^[15]
Bacidia thiersiana Lendemer (2020)^[16] – United States
Bacidia thyrrenica Llop (2007)
Bacidia vagula (Vain.) Zahlbr. (1926)
Bacidia vallatula (Jatta) Kantvilas (1993)
Bacidia veneta S.Ekman (2004)
Bacidia vinicolor (Stirt.) Zahlbr. (1926)
Bacidia viridescens (A.Massal.) Hellb. (1871)

References

^ "Synonymy. Current Name: Bacidia De Not., G. bot. ital. 2(1.1): 189 (1846)". Species Fungorum. Retrieved 29 October 2023.
^ De Notaris, G. (1846). "Frammenti lichenografici di un lavoro inedito". Giornale Botanico Italiano (in Italian). 2 (1): 174–224.
^ "Bacidia De Not". Lichens of the Ozarks. Retrieved 2009-10-21.
^ ^a ^b ^c ^d Gerasimova, Julia V.; Ezhkin, Aleksandr K.; Beck, Andreas (2018). "Four new species of Bacidia s.s. (Ramalinaceae, Lecanorales) in the Russian Far East". The Lichenologist. 50 (6): 603–625. doi:10.1017/s0024282918000397. S2CID 92487371.
^ Kantvilas, G. (2017). "Two species of Bacidia De Not. with pruinose apothecia from Kangaroo Island". Swainsona. 31: 31–36.
^ Ekman, Stefan; Holien, Håkon (1995). "Bacidia caesiovirens, a new lichen species from western Europe". The Lichenologist. 27 (2): 91–98. doi:10.1006/lich.1995.0008. S2CID 85790458.
^ ^a ^b ^c Lendemer, James C.; Harris, Richard C.; Ladd, Douglas (2016). "The faces of Bacidia schweinitzii: molecular and morphological data reveal three new species including a widespread sorediate morph". The Bryologist. 119 (2): 143–171. doi:10.1639/0007-2745-119.2.143. S2CID 89174078.
^ Lendemer, James C. (2018). "Bacidia gullahgeechee (Bacidiaceae, Lecanoromycetes) an unusual new species potentially endemic to the globally unique Ashepoo-Combahee-Edisto River Basin of southeastern North America". The Bryologist. 121 (4): 536–546. doi:10.1639/0007-2745-121.4.536. S2CID 91258875.
^ Aragón, Gregorio; Martínez, Isabel (2003). "Bacidia iberica, a new lichen from Spain, and its relationship to Bacidia rubella". The Bryologist. 106 (1): 143–146. doi:10.1639/0007-2745(2003)106[0143:bianlf]2.0.co;2. S2CID 85866612.
^ ^a ^b ^c Kantvilas, Gintaras (2018). "Studies on Bacidia (lichenized Ascomycota, Ramalinaceae) in temperate Australia, including Tasmania: saxicolous and terricolous species". The Lichenologist. 50 (4): 451–466. doi:10.1017/s0024282918000154. S2CID 92484407.
^ Printzen, Christian; Tønsberg, Tor (2007). "Bacidia lobarica (Bacidiaceae, Lecanorales) sp. nov., a sorediate lichen from the southeastern U.S.A". The Bryologist. 110 (3): 487–489. doi:10.1639/0007-2745(2007)110[487:blblsn]2.0.co;2. S2CID 85983972.
^ ^a ^b Fryday, Alan M. (2019). "Eleven new species of crustose lichenized fungi from the Falkland Islands (Islas Malvinas)". The Lichenologist. 51 (3): 235–267. doi:10.1017/S0024282919000185. S2CID 196649792.
^ Czarnota, Paweł; Coppins, Brian J. (2006). "A new Bacidia with long-necked pycnidia from Central Europe". The Lichenologist. 38 (5): 407–410. doi:10.1017/s0024282906005986. S2CID 84598140.
^ Ekman, Stefan (2009). "Bacidia rosellizans, a new lichen species from the taiga belt". The Lichenologist. 41 (5): 481–487. doi:10.1017/s0024282909990144. S2CID 83709401.
^ Aptroot, André; Cáceres, Marcela Eugenia da Silva (2014). "New lichen species from termite nests in rainforest in Brazilian Rondônia and adjacent Amazonas". The Lichenologist. 46 (3): 365–372. doi:10.1017/s0024282913000340. S2CID 83601214.
^ Lendemer, James C. (2020). "Bacidia thiersiana (Ramalinaceae), a new species with lobaric acid widespread in southeastern North America". The Bryologist. 123 (1): 39–47. doi:10.1639/0007-2745-123.1.039. S2CID 212649587.

Gallery

Cross section of an apothecium of B. schweinitzii, photographed through a compound microscope (x1000), showing a green epihymenium and a dark reddish-brown hypothecium
Acicular spore of B. schweinitzii, 65 x 6 micrometres, photographed through a compound microscope, x1000