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Xanthoparmelia hypoleia (Nyl.) 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. (06-05-01). Data set not revised; to be published after submission.

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

Type Information: Basionym: Parmelia hypoleia Nyl.

Taxonomic Literature: Phytologia 28: 487 (1974).

Biogeography: Southern hemispheric; temperate; coastal. Continent: Africa (South Africa) and Australasia. Checklist records: Australia (rare, south-western W.A.).

Ecology: Lichenized; saxicolous.

Thallus: Foliose, irregular (subdichotomously to irregularly branched), lobed; lobes linear (sublinear-elongate), imbricate (or not); plane; separate thallus parts.5-1.5-(3) mm wide. Thallus Size and Differentiation: 5-8 cm in diameter. Upper Surface: Lime green (blackening with age), glossy (shiny); fissurate; fissures transversely oriented oriented; maculate (distinct or effigurate); wrinkled (older lobes becoming rugulose); not isidate; not sorediate. Lower Surface: Present, black; attached by holdfasts (adnate); rhizinate (robust); rhizines moderately abundant, black, not branched (tufted or not).

Medulla: White.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid (shortly pedicellate), 3-6 mm in diam.. Margin: Distinct (maculate, entire and involute, becoming dentate and cracked). Disk: Excavate, dark brown.

Ascospores: 6-8 µm long, 4-5 µm wide.

Conidiomata: Present (common).

Conidia: Bifusiform; 6-7 µm long; .5 µm wide.

Secondary Metabolites: Present; protocetraric acid, usnic acid, and virensic acid (trace).

Spot Tests: Cortex: KC – medulla: K + yellow (pale yellow then brown), C –, PD + orange (orange-red).

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

(report generated 04.Okt.2007)

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