Xanthoparmelia subnuda (Kurok.) 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. (06-06-03). Data set not revised; to be published after submission.
Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Xanthoparmelia subnuda (Kurok.) Hale. Xanthoparmelia. Synonyms: Parmelia subnuda Kurok.; Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.
Type Information: Basionym: Parmelia subnuda Kurok. Type: Parmelia subnuda Kurok.; type specimen label data: S. Kurokawa 5178; holo: TNS.
Taxonomic Literature: Phytologia 28: 489 (1974).
Biogeography: Southern hemispheric; temperate. Continent: Australasia. Checklist records: Australia and New Zealand.
Ecology: Lichenized; saxicolous.
Thallus: Foliose, isotomic-dichotomous (di- or trichotomously branched), lobed; lobes elongate or linear (sublinear to linear), imbricate; plane; separate thallus parts.3-1 mm wide. Thallus Size and Differentiation: 4-7 cm in diameter; apex curved upwards (often ascending). Upper Surface: Lime green (lobe margins often blackened), matt or glossy (shiny), smooth; immaculate; not isidate; not sorediate. Lower Surface: Present, black; attached by holdfasts (loosely adnate); wrinkled; not rhizinate or rhizinate (robust, 0.2-1 mm long); rhizines sparse (very sparse), black, not branched.
Medulla: White.
Reproduction Strategy: With sexual (and possible asexual) stages (subpedicellate). Ascocarps: Apothecioid, 2-10 mm in diam.. Margin: Smooth (emaculate, undulating or not). Disk: Excavate, dark brown.
Ascospores: 7-8 µm long, 5 µm wide.
Conidiomata: Present (but rare).
Conidia: Bifusiform; 5-6 µm long; .5 µm wide.
Secondary Metabolites: Present; norstictic acid (norstictic acid (major) and connorstictic acid), salazinic acid, and usnic acid.
Spot Tests: Cortex: KC medulla: K + yellow changing to red, C , KC , PD + orange (yellow-orange).
UV-Fluorescence: Upper thallus surface (negative).
(report generated 04.Okt.2007)
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