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- ›shield lichens and allies
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Speckled Shield Lichens
Punctelia
Punctelia is a genus of foliose lichens belonging to the large family Parmeliaceae. The genus, which contains about 50 species, was segregated from genus Parmelia in 1982. Characteristics that define Punctelia include the presence of hook-like to thread-like conidia (asexual spores), simple rhizines (root-like structures that attach the lichen thallus to its substrate), and point-like pseudocyphellae (tiny pores on the thallus surface that facilitate gas exchange). It is this last feature that is alluded to in the vernacular names speckled shield lichens or speckleback lichens.
Punctelia lichens grow on bark, wood, and rocks. The genus has a worldwide distribution, occurring on all continents but Antarctica. Species are found in temperate to subtropical locations. Punctelia has centres of distribution in the Neotropics and Africa; about half of the known species occur in South America. The photobiont partners of Punctelia are green algae in the genus Trebouxia. Some pollution-sensitive Punctelia species have been proposed for use as bioindicators of air pollution.
42 branches of this genus, most-observed first
rough speckled shield lichen
speciesPunctelia rudecta
Eastern speckled shield lichen
speciesPunctelia bolliana
Powdered Speckled Shield Lichen
speciesPunctelia jeckeri
Powdered Speckled Shield Lichen
speciesPunctelia subrudecta
Mealy Speckled Shield Lichen
speciesPunctelia missouriensis
Moondust Speckled Lichen
speciesPunctelia caseana
Borrer's Speckled Shield Lichen
speciesPunctelia borreri
Rock Speckled Shield Lichen
speciesPunctelia stictica
Appalachian Speckleback Lichen
speciesPunctelia appalachensis
Powdered Speckleback Lichen
speciesPunctelia perreticulata
Mountain Magnificence
speciesPunctelia reddenda
Punctelia graminicola
speciesPunctelia graminicola
Punctelia hypoleucites
speciesPunctelia hypoleucites
Punctelia subflava
speciesPunctelia subflava
Punctelia ruderata
speciesPunctelia ruderata
Punctelia punctilla
speciesPunctelia punctilla
Punctelia constantimontium
speciesPunctelia constantimontium
Punctelia subalbicans
speciesPunctelia subalbicans
Punctelia novozelandica
speciesPunctelia novozelandica
Punctelia subpraesignis
speciesPunctelia subpraesignis
Punctelia canaliculata
speciesPunctelia canaliculata
Punctelia transtasmanica
speciesPunctelia transtasmanica
Punctelia eganii
speciesPunctelia eganii
Punctelia nashii
speciesPunctelia nashii
Punctelia negata
speciesPunctelia negata
Punctelia diffractaica
speciesPunctelia diffractaica
Punctelia crispa
speciesPunctelia crispa
Punctelia digitata
speciesPunctelia digitata
Punctelia fimbriata
speciesPunctelia fimbriata
Punctelia imbricata
speciesPunctelia imbricata
Punctelia jujensis
speciesPunctelia jujensis
Punctelia roseola
speciesPunctelia roseola
Punctelia purpurascens
speciesPunctelia purpurascens
Punctelia anae
speciesPunctelia anae
Punctelia borrerina
speciesPunctelia borrerina
Punctelia cedrosensis
speciesPunctelia cedrosensis
Punctelia colombiana
speciesPunctelia colombiana
Punctelia microsticta
speciesPunctelia microsticta
Punctelia toxodes
speciesPunctelia toxodes
Punctelia riograndensis
speciesPunctelia riograndensis
Punctelia neutralis
speciesPunctelia neutralis
Punctelia tomentosula
speciesPunctelia tomentosula
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Punctelia in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 69211.