Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Phaeographis dendritica
liquen de escritura, Script lichen
Thallus thin to moderately thickened, continuous to rimose-areolate, pale white or gray; surface ecorticate, pruinose; Apothecia immersed to ±prominent, lirellate; lirellae ±narrow, elongate, branched to distinctly stellate, not embedded into pseudostroma; labia thin, narrow, with a thick, distinct thalline rim; disc expanded, barely concave to flattened, with a white, farinose pruina; exciple thin, laterally deep yellowish brown to indistinctly carbonized; hymenium hyaline, inspers, I– or weakly I+ wine red; ascospores pale gray, soon brownish, I+ red or reddish brown, 8 per ascus, oblong to broadly fusiform, 25-45 x 6-9 µm, transversely septate, 6-7(-10) celled. Chemistry: Norstictic and connorstictic acid, K+ orange-red (crystals).
Sometimes confused with P. intricans, but with larger spores that have more than 3 septa, an inspers hymenium, an ecorticate thallus, and elongated lirellae not aggregated in pseudostromatic areas.
Domain
Eukaryota
Kingdom
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Ostropales
Family
Graphidaceae
Genus
Phaeographis
Species
dendritica
Taxon category: Accepted
Origin: Native
Map of specimen collection localities or observation records for this species in our collections database.
Distribution: Cosmopolitan, previously reported from Galapagos, but most original reports erroneous, based on misidentifications, few specimens confirmed, infrequent in the transition zone, also found again on Volcán Darwin at the high altitude dry zone above the cloud layer, on bark of Bursera graveolens, Psidiu
- Weber, W.A. (1986) The Lichen Flora of the Galápagos Islands, Ecuador. Mycotaxon 27: 451-497.
- Elix, J.A. McCarthy, P.M. (1998) Catalogue of the Lichens of the Smaller Pacific Islands. Bibliotheca Lichenologica 70, J. Cramer, Berlin, Stuttgart, 361pp.
- Bungartz, F. Lücking, R. & Aptroot, A. (2009) The lichen family Graphidaceae (Ostropales, Lecanoromycetes) in the Galapagos Islands. Nova Hedwigia 90: 1-44.
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This page should be cited as follows:
"Galapagos Species Database, Phaeographis dendritica", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=3136. Accessed 3 May 2025.