This is a list of species in the predominantly crustose lichen genus Buellia. They are commonly known as "button lichens" due to the characteristic shape of their apothecia. A 2020 estimate placed about 300 species in the genus. , Species Fungorum accepts 201 species (including 9 varieties) in Buellia.

A

Buellia adjuncta

Buellia aequata

Buellia aeruginascens

Buellia aeruginosa – Australia

Buellia aethalea

Buellia akatorensis – New Zealand

Buellia albulella – Australia

Buellia alectorialica – New Zealand

Buellia amandineiformis – Australia

Buellia amblyogona

Buellia arborea

Buellia arenaria

Buellia arnoldii

Buellia asterella

Buellia atroflavella

Buellia austera – Australia

Buellia austroabstracta – Australia

Buellia austroalpina – Australia

B

Buellia badia

Buellia billewersii – New Zealand

Buellia bogongensis – Australia

Buellia bohlensis – Australia

C

Buellia campbelliana

Buellia canobolasensis

Buellia capensis – South Africa

Buellia carballaliana

Buellia chionea

Buellia christophii

Buellia chujadoensis

Buellia chujana – South Korea

Buellia cinnabarina – Australia

Buellia claricollina – Australia

Buellia cranfieldii – Australia

Buellia cranwelliae – New Zealand

D

Buellia dakotensis

Buellia desertica

Buellia desertorum

Buellia dialyta

Buellia dijiana – Australia

Buellia dimbulahensis – Australia

Buellia diplotommoides

Buellia disciformis

Buellia dispersa

Buellia durackensis – Australia

E

Buellia ecclesensis – Australia

Buellia eganii

Buellia endoferruginea

Buellia endoleuca

Buellia epiaeruginosa – Australia

Buellia epifimbriata

Buellia epigaea

Buellia epigaella – Australia

Buellia erubescens

Buellia ewersii – Australia

Buellia excelsa

Buellia extenuatella – Australia

Buellia extremoorientalis

F

Buellia fallax – Australia

Buellia farinulenta

Buellia flavescens

Buellia fluviicygnorum – Australia

Buellia fosteri

Buellia fraudans

Buellia frigida

Buellia fuliginosa

G

Buellia geophila

Buellia georgei – Australia

Buellia gerontoides

Buellia griseovirens

Buellia gypsyensis – Falkland Islands

H

Buellia halonioides – Australia

Buellia haywardii – New Zealand

Buellia herveyensis – Australia

Buellia himalayensis

Buellia homophylia

Buellia hyperbolica

Buellia hypomelaena

Buellia hypopurpurea – New Zealand

Buellia hyporosea – Australia

Buellia hypostictella – New Zealand

I

Buellia iberica

Buellia innata

Buellia insularicola – Kermadec Islands

Buellia insularis

Buellia inturgescens

J

Buellia jugorum

K

Buellia kantvilasii – New Zealand

Buellia kaproorea – Australia

Buellia kerguelenica – Kerguelen Islands

Buellia kimberleyana – Australia

Buellia krempelhuberi

L

Buellia lactea

Buellia laurocanariensis

Buellia lepidastroidea

Buellia leptocline

Buellia leptoclinoides

Buellia leucomela – Jamaica; United States

Buellia lichexanthonica

Buellia lobata – Australia

M

Buellia mackeei – New Caledonia

Buellia macveanii – Australia

Buellia magaliesbergensis – South Africa

Buellia maficola – Australia

Buellia malcolmii – New Zealand

Buellia mamillana

Buellia marginulata

Buellia maungatuensis – New Zealand

Buellia mawsonii

Buellia mayrhoferae – Australia

Buellia mediterranea

Buellia mesospora – Australia

Buellia microsporella

Buellia minispora – Antarctica

Buellia mogensenii – Greenland

Buellia molonglo – Australia

Buellia morsina

Buellia multispora

N

Buellia namaquaensis – South Africa

Buellia nashii

Buellia navajoensis

Buellia nordinii – Venezuela

Buellia northallina – Australia

Buellia numerosa – Japan

O

Buellia ocellata

Buellia oidalea

P

Buellia pallidomarginata

Buellia pannarina – Australia

Buellia papanui – New Zealand

List of Buellia species