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Xanthoparmelia immutata Elix & J. Johnst.

Data Set Maintenance: Data set compiled (Flora of Australia Vol. 55 Lichens-Lecanorales, Parmeliaceae). Data set author(s): Nöske, N. M. @EXCL@ Bungartz F. (06-05-09). Data set not revised; to be published after submission.

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

Type Information: Basionym: Xanthoparmelia immutata Elix & J. Johnst. Type: Xanthoparmelia immutata Elix & J. Johnst.; type specimen label data: J. A. Elix 11209 & L. A. Craven; holo: CBG.

Taxonomic Literature: Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 266 (1986).

Biogeography: Southern hemispheric. Continent: Australasia. Checklist records: Australia (rare, endemic, in central Australia: N.T., S.A. and Qld.).

Ecology: Lichenized; saxicolous (on rock ledges with a southerly aspect); growing under conditions which are dry.

Thallus: Foliose (foliose to subcrustose), irregular, lobed; lobes plane; separate thallus parts.2-1-(1.5) mm wide. Thallus Size and Differentiation: 3-5 cm in diameter. Upper Surface: Lime green (pale yellow-green), glossy (shiny) (at least near lobe apices), smooth (at margins); fissurate; fissures transversely oriented or not particularly oriented oriented; immaculate; wrinkled (older lobes becoming rugulose and eventually areolate); isidiate (isidia apices syncorticate and solid); isidia central, globular or cylindrical, not ramified or ramified, coralloid (expanding laterally and becoming branched and coralloid). Lower Surface: Present, pale brown (pale tan to light brown, darker at lobe apices); attached by holdfasts (very tightly adnate); rhizinate (short); rhizines sparse or moderately abundant, pale brown (concolorous with lower surface), not branched.

Medulla: White.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, soon sessile, .5-1 mm in diam.. Margin: Smooth, distinct (entire and involute); isidiate (ultimately isidiate). Disk: Excavate to plane, dark brown.

Ascospores: 6-10.5 µm long, 3.5-5.5 µm wide.

Conidiomata: Absent resp. not observed (not seen).

Secondary Metabolites: Present; usnic acid.

Spot Tests: Cortex: KC – medulla: K –, C –, KC –, PD –.

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

(report generated 04.Okt.2007)

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