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Xanthoparmelia lineola (E. C. Berry) 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. (06-05-14). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Xanthoparmelia lineola (E. C. Berry) Hale. Xanthoparmelia. Synonyms: Parmelia lineola E. C. Berry
Parmelia rimalis Kurok.;
Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Basionym: Parmelia lineola E. C. Berry. Type: Parmelia lineola E. C. Berry; type specimen label data: L. Hubricht B1170; holo: US.

Taxonomic Literature: Phytologia 28: 488 (1974).

Biogeography: Southern hemispheric. Continent: Australasia and Northern America (and Central America). Checklist records: Australia (from dry sclerophyll forests of southern Australia to arid grasslands and ranges of central Australia (W.A., N.T., S.A., N.S.W., A.C.T., Vic. and Tas./ Bass Strait)), Mexico, New Zealand, and United States and Canada (continental).

Ecology: Lichenized; saxicolous; growing under conditions which are dry.

Thallus: Foliose, irregular, lobed; lobes linear (sublinear), imbricate (barely imbricate or not); rounded at the front; plane or convex; separate thallus parts 1-2.5 mm wide. Thallus Size and Differentiation: 5-10-(15) cm in diameter. Upper Surface: Lemon (citrine) or lime green (darkening), matt; fissurate (sometimes becoming cracked and rarely areolate); fissures transversely oriented or not particularly oriented oriented; immaculate; wrinkled (older lobes becoming rugulose); not isidate; not sorediate. Lower Surface: Present, brown (often darker towards lobe apices) or pale brown; attached by holdfasts (adnate to tightly adnate); rhizinate (slender, 0.2-0.3 mm long); rhizines sparse or moderately abundant, brown (concolorous with lower surface) or pale brown, not branched.

Medulla: White.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, soon sessile, 1-5-(8) mm in diam.. Margin: Smooth, distinct (thick and involute, becoming thin and slightly lacerate). Disk: Excavate (then undulating), dark brown.

Ascospores: 12-13 µm long, 6-7 µm wide.

Conidiomata: Present (common).

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

Secondary Metabolites: Present; salazinic acid (+/- constipatic acid and +/- protoconstipatic acid) and usnic acid.

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

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

(report generated 04.Okt.2007)

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