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Ramboldia plicatula (Müll. Arg.) Kantvilas & Elix

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (03-01-27). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Synonyms: Protoparmelia plicatula (Müll. Arg.) Rambold; Lecidea plicatula (Müll. Arg.) Zahlbr.; Lecanoraceae Körb. (1855); Lecanorineae; Lecanorales.

Type Information: Basionym: Psora plicatula Müll. Arg. (1893).

Taxonomic Literature: Rambold G., Biblioth. Lichenol. 34: 1-345 (1989); Kantvilas G., Elix J.A., Bryologist 97(3): 296-304 (1994).

Biogeography: Continent: Australasia.

Ecology: Biotroph; lichenized; episubstratic; substrate non-calciferous.

Thallus: Crustose, areolate (primarily areolate) (verrucose); separate thallus parts thick. Thallus Size and Differentiation: Up to 12 cm long. Thallus Outline: Soon disappearing. Upper Surface: Pale brown or lemon (citrine) (creamy), smooth.

Upper Cortex: Present.

Reproduction Strategy: With sexual (and possible asexual) stages (max. diam. 0.9-1.8(-3) mm). Ascocarps: Apothecioid, soon sessile, not constricted (mostly) at the base, .5-1.2 mm in diam.. Margin: More or less persistent, distinct, 60-150 µm wide. Disk: Plane or weakly convex, dark brown, epruinose. Exciple: Brown or white. Parathecium (proper excipulum): Brown (faint) or white. Amphithecium (thalline excipulum): Present. Epithecium: Apical cells distinctly swollen, brown. Hymenium: 35-45 µm high; brown, white, or pale brown. Interascal Hyphae: More or less distinctly branched. Hypothecium: White.

Asci: 30-40 µm long, 8-11.5 µm wide.

Ascospores: c. 8 per ascus, ellipsoid to oblong-obtuse, 7-12 µm long, 3-4 µm wide.

Conidiomata: Present; immersed.

Conidia: Filiform; 15-18-22 µm long, .8 µm wide.

Secondary Metabolites: Present (baeomycesic acid (major), squamatic acid, barbatic acid (minor, traces)).

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

(report generated 04.Okt.2007)

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