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Physcia integrata Nyl.

Data Set Maintenance: Data set compiled (from Sonoran Lichen Flora Vol.1). Data set author(s): Bungartz F. (02-02-07). Data set to be published after submission; February 2002.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Currently accepted name Physcia integrata Nyl. Physcia. Physciaceae Zahlbr. (1898); Lecanorineae; Lecanorales.

Type Information: Basionym: Physcia integrata Nyl. Type: Physcia integrata Nyl.

Biogeography: Subtropical; submontane. Continent: Northern America and Southern America. Checklist records: Mexico and Sonoran Desert (only one locality).

Ecology: Biotroph; lichenized; corticolous or saxicolous; episubstratic; growing sun-exposed or partially shaded; under conditions which are moist or wet.

Thallus: Foliose, subdivided into main parts, lobed; lobes often imbricate; often imbricate; separate thallus parts 1 mm wide. Thallus Size and Differentiation: Up to (5) cm in diameter; apex rounded. Thallus Outline: Irregular or orbicular; margin lobulate (sometimes inner parts dissected into small lobes); darkened the thallus centre; soon disappearing. Upper Surface: Grey or pale grey, usually glossy (shiny), smooth; sometimes maculate; maculae punctiform; pruinose or sometimes epruinose; pruina whitish; eciliate; without hairs; not isidate; not sorediate; not blastidiate; not schizidiate; not lobulate. Lower Surface: Present, black (except for pale lobe tips), black in the centre, grey along the margin, more or less firmly attached attached; attached by holdfasts (true rhizines); rhizines abundant, black, without projections, not branched or branched (rhizines simple to sparsely furcate), sparsely furcate; not sorediate; not tomentose.

Upper Cortex: Present; outer cortical layer paraplectenchymatous; inner cortical layer paraplectenchymatous (with thick brownish to black cell walls). Medulla: White. Lower Cortex: Present.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, soon sessile or substipitate, abundant, up to 2 mm in diam.. Margin: Lecanorine, smooth, persistent, distinct; not isidiate; not ciliate; not hirsute. Disk: Plane; black or dark brown; sometimes pruinose, pruina scarce, white. Epithecium: With epithecium (simple or forked); apical cells subulate (clavate with dark brown cap), pale brown. Hymenium: White; not inspers. Interascal Hyphae: Scarcely branched (paraphyses simple or forked above). Subhymenium: White. Hypothecium: White; not inspers.

Asci: Cylindrical; dehiscence lecanoralean (Lecanora-Type).

Ascospores: Pachysporaria-type, c. 8 per ascus, ellipsoid, (18.5)-21-26-(32.5) µm long, (8.5)-9-11.5-(14) µm wide; septa present; transversally septate; 1-transversally septate; wall thickened at the septum, becoming pigmented, dark brown (at maturity) or middle brown.

Conidiomata: Present; strongly abundant.

Conidia: Bacilliform (not bacilliform but cylindrical); 4-6 µm long; 1 µm wide.

Secondary Metabolites: Present; only in the upper part of the cortex or throughout the thallus medulla, hopane-6a,22-diol (, lecotyline and unidentified triterpenes in medulla), metabolite(s) of unresolved identity: present (triterpenes).

Spot Tests: Present reactions. Upper surface: K + deep yellow, C –, KC –, PD + yellow; cortex: KC + deep yellow, medulla: K + yellow; C –, KC –, PD + deep yellow; soredia: K + deep yellow; KC –.

(report generated 13.Nov.2007)

In case that additional characters and states are required to be included in this data set, consult the LIAS Instructions to Participants and follow the procedures described there.