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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. (06-05-15). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Xanthoparmelia masonii Elix. Xanthoparmelia. Synonyms: (Xanthoparmelia neopropagulifera auct. non (Gyeln.) Hale, nom. inval. = X. neopropaguloides Hale); Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Basionym: Xanthoparmelia masonii Elix. Type: Xanthoparmelia masonii Elix; type specimen label data: M. E. Hale 59276; holo: CBG.

Biogeography: Southern hemispheric. Continent: Australasia. Checklist records: Australia (rare, endemic, only known from the type collection south of Nimmitabel, N.S.W.).

Thallus: Foliose (small foliose to subcrustose), not subdivided or subdivided into main parts, irregular, lobed; lobes linear (sublinear); plane; separate thallus parts.3-1 mm wide. Thallus Size and Differentiation: 3-6 cm in diameter. Upper Surface: Lime green, matt; fissurate (older lobes cracked; areolae present); fissures not particularly oriented oriented; immaculate; isidiate (sparse to moderately dense, syncorticate); isidia cylindrical, not ramified (mainly simple); not sorediate. Lower Surface: Present, pale brown (ivory to pale brown, often straw-yellow near lobe apices); attached by holdfasts (tightly adnate); rhizinate; rhizines moderately abundant, pale brown, not branched.

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

Secondary Metabolites: Present; constictic acid, norstictic acid (other secondary metabolites: cryptostictic acid (trace), rarely menegazziaic acid (trace)), stictic acid, and usnic acid, metabolite(s) of unresolved identity: absent or present.

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