Pyrenula leucostoma
species of fungus

Pyrenula leucostoma is a species of corticolous (bark-dwelling), crustose lichen in the family Pyrenulaceae.
Description
Pyrenula leucostoma is a crustose lichen that has a grey-brown and brown to olive green thallus, and subglobose black ascomata which measure 0.5–1.5 mm (0.020–0.059 in) in diameter.
Taxonomy
The lichen was formally described as a new species by Swedish botanist Erik Acharius in 1814.
Distribution and habitat
The species is pantropical, found in areas including Southeastern North America, the Caribbean and Australia, in eastern Queensland, New South Wales and on Norfolk Island. It was first recognised as being present in New Zealand in 2015. The species is often found in open, coastal habitats and shaded forests, found on the bark of hardwood trees. In Nepal, P. leucostoma has been reported from 2,400 to 2,600 m elevation in a compilation of published records.
This brief starts where responsible research should: with the source description of “Pyrenula leucostoma” as species of fungus. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the science & nature register because the source frames it as species of fungus. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Mar 10, 2026. The linked authority identifier is Q10647411. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1814 and 2015.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
- Current terminology
- Classification context
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Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “Pyrenula leucostoma”, its source revision and the description used here.
- Expand the search: follow Pyrenula leucostoma primary sources, Pyrenula leucostoma archive and Pyrenula research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “Pyrenula leucostoma” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.