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Xanthoparmelia metamorphosa (Gyeln.) Hale

Data Set Maintenance: Data set compiled (Flora of Australia Vol. 55 Lichens-Lecanorales, Parmeliaceae). Data set author(s): Nöske, N. M. @EXCL@ Bungartz F. (06-05-16). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Xanthoparmelia metamorphosa (Gyeln.) Hale. Xanthoparmelia. Synonyms: Parmelia metamorphosa Gyeln.; Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Basionym: Parmelia metamorphosa Gyeln. Type: Parmelia metamorphosa Gyeln.; type specimen label data: E. Cheel; holo: BP.

Taxonomic Literature: Phytologia 28: 488 (1974).

Biogeography: Southern hemispheric. Continent: Australasia. Checklist records: Australia (in eastern Australia (S.A., Qld, N.S.W., A.C.T. and Vic.)) and New Zealand.

Ecology: Lichenized; saxicolous; growing sun-exposed, under conditions which are moist (in areas of high rainfall).

Thallus: Foliose, isotomic-dichotomous (dichotomously branched, divaricate), lobed; lobes elongate or linear, ascending (margins often subascending at apices exposing lower surface) or imbricate; plane; separate thallus parts.2-.6 mm wide. Thallus Size and Differentiation: 4-6 cm in diameter. Upper Surface: Lime green (margins black or brown), glossy (shiny), smooth; maculate (white-maculate); not isidate; not sorediate. Lower Surface: Present, pale brown (ivory to pale brown, darker towards apices, shiny or matt); attached by holdfasts (loosely adnate); wrinkled; rhizinate; rhizines sparse (very sparse), pale brown (concolorous with lower surface), not branched.

Medulla: White.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, soon sessile, 1.5-8 mm in diam.. Margin: Crenulate (becoming deeply lacerate), indistinct (involute). Disk: Excavate (becoming flattened and distorted), brown or dark brown.

Ascospores: 8-10 µm long, 4-5.5 µm wide.

Conidiomata: Present (common).

Conidia: Bifusiform; 5-6 µm long; .5 µm wide.

Secondary Metabolites: Present; norlobaridone (and loxodin) and usnic acid.

Spot Tests: Cortex: KC – medulla: K –, C –, KC + pink (rose), PD –.

UV-Fluorescence: Upper thallus surface – (negative).

(report generated 04.Okt.2007)

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