Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Diorygma poitaei
liquen de escritura, Script lichen
Thallus thick, continuous to rimose or rimose-areolate, pale bluish gray, pale gray, becoming creamy white with storage; surface mealy pruinose, ecorticate; Apothecia deeply sunken into the thallus, lirellate; lirellae elongate, slender, labia inconspicuous, whitish, mealy; disc concealed, a thin slit, rarely ±irregularly expanded and whitish pruinose; exciple thin, colorless to pale brown, not carbonized; hymenium hyaline, clear (not inspers), I+ bluish violet (at least in the upper parts); ascospores hyaline, I+ bluish violet, 8 per ascus, large, narrowly ellipsoid to oblong, 39-64(68) x 9-11 µm, muriform, 8-12 vs. 2-3 celled. Chemistry: Hypostictic, hypoconstictic, and α-acetylhypoconstictic acid (according to Staiger 2004b); thallus K+ yellow.
Previously reported as Graphina virginea (Elix & Mccarthy 1998, Weber 1986.)
Domain
Eukaryota
Kingdom
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Ostropales
Family
Graphidaceae
Genus
Diorygma
Species
poitaei
Taxon category: Accepted
In Weber (1986) as Graphina virginea, fide F. Bungartz 2008
Origin: Native
Map of specimen collection localities or observation records for this species in our collections database.
Distribution: A neotropical species; in Galapagos all the way from the dry zone through the humid zone, common on bark of native and introduced trees including Acacia rorudiana, Cedrela odorata, Erythrina corallodendron, Inga edulis, Psidium galapageium, Syzygium sp., and Zanthoxylum fagara. Often in disturbed an
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This page should be cited as follows:
"Galapagos Species Database, Diorygma poitaei", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=2629. Accessed 28 June 2025.