Xanthoparmelia hypomelaenoides 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. (06-05-01). Data set not revised; to be published after submission.
Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Xanthoparmelia hypomelaenoides Elix & J. Johnst. Xanthoparmelia. Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.
Type Information: Basionym: Xanthoparmelia hypomelaenoides Elix & J. Johnst.
Taxonomic Literature: Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 263 (1986).
Biogeography: Southern hemispheric. Continent: Australasia. Checklist records: Australia (very rare, endemic, on rock in subarid shrubland areas of inland S. A. and hinterland ranges of south-eastern Qld.).
Ecology: Lichenized; saxicolous; growing under conditions which are dry.
Thallus: Foliose, irregular, lobed; lobes linear (sublinear-elongate), imbricate (or not); plane; separate thallus parts 1-3 mm wide. Thallus Size and Differentiation: Up to 7 cm in diameter; apex rounded (subrotund). Upper Surface: Lime green (pale yellow-green, darkening with age), glossy (shiny) (at least near lobe apices); fissurate; fissures transversely oriented (older lobes becoming transversely or irregularly cracked) oriented; immaculate; wrinkled (older lobes becoming rugulose); not isidate; not sorediate. Lower Surface: Present, black (shiny black); attached by holdfasts (adnate to tightly adnate); wrinkled; rhizinate (robust, short); rhizines sparse or moderately abundant, black, not branched (tufted or not).
Medulla: White.
Reproduction Strategy: Only known as sterile, asexually reproducing form.
Conidiomata: Present (common).
Conidia: Bifusiform; 4-5 µm long; .5 µm wide.
Secondary Metabolites: Present; fumarprotocetraric acid (and succinprotocetraric acid), protocetraric acid, and usnic acid.
Spot Tests: Cortex: KC – medulla: K + yellow (yellow then brown), C –, KC –, PD + red (intense brick-red).
UV-Fluorescence: Upper thallus surface – (negative).
(report generated 04.Okt.2007)
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