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Data Set Maintenance: Data set compiled (Flora of Australia Vol. 55 Lichens-Lecanorales, Parmeliaceae). Data set author(s): Nöske, N. M. @EXCL@ Bungartz F. (06-05-20). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Xanthoparmelia norpraegnans Elix & J. Johnst. Xanthoparmelia. Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Basionym: Xanthoparmelia norpraegnans Elix & J. Johnst. Type: Xanthoparmelia norpraegnans Elix & J. Johnst.; type specimen label data: J. A. Elix 21742 & M. V. Sargent; holo: CBG.

Biogeography: Southern hemispheric. Continent: Australasia. Checklist records: Australia (very rare, endemic, restricted to southern W.A. and S.A.).

Thallus: Foliose (small foliose to subcrustose), irregular, lobed; lobes imbricate (barely imbricate or not); plane; separate thallus parts.5-1 mm wide. Thallus Size and Differentiation: 1-3 cm in diameter. Upper Surface: Lime green (darkening with age), glossy (shiny) (at least near apices); fissurate (becoming cracked); fissures transversely oriented or not particularly oriented oriented; immaculate; wrinkled (older lobes becoming rugulose and areolate); isidiate (coarse, isidia apices epicorticate, commonly inflated and becoming erumpent but not sorediate); isidia central, globular or cylindrical (becoming shortly cylindrical), ramified (rarely branched). Lower Surface: Present, pale brown (pale tan to light brown, apices darker, shiny); attached by holdfasts (tightly adnate); rhizinate (short (ca. 0.1 mm)); rhizines sparse or moderately abundant, pale brown (concolorous with lower surface), not branched.

Reproduction Strategy: Only known as sterile, asexually reproducing form (not seen).

Secondary Metabolites: Present; norstictic acid (norstictic acid (major), other secondary metabolites: connorstictic acid (minor), +/- constipatic acid and +/- protoconstipatic acid) and usnic acid.

Spot Tests: Cortex: KC – medulla: K + yellow changing to red, C –, PD + deep yellow.

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