Cladidium bolanderi (Tuck.) B. D. Ryan

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (03-01-13). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Cladidium. Synonyms: Polycauliona bolanderi Hue, Lecanora thamnitis Tuck., Polycauliona thamnitis (Tuck.) Hue, Cladidium thamnitis (Tuck.) Hafellner; Lecanoraceae Körb. (1855); Lecanorineae; Lecanorales.

Type Information: Basionym: Lecanora (Squamaria) bolanderi Tuck. 1864.

Taxonomic Literature: Ryan B.D., Mycotaxon 34(2): 697-712 (1989).

Biogeography: Coastal. Continent: Northern America.

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

Thallus: Granular; separate thallus parts thick. Thallus Outline: Irregular. Upper Surface: Grey (with irregularly shaped pale whitish or yellowish areas (pseudocyphellae or maculae in the broad sense), especially toward lobe tips), grey-yellow, lime green, or olive, matt, smooth or slightly rough (often); special structures present: (pseudocyphellae or maculae in the broad sense); not isidate; not sorediate.

Upper Cortex: Present (25-45 µm thick).

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, irregular, forming independently from the host thallus or mycelium, becoming adnate or soon sessile, not constricted or slightly constricted at the base, .5-4 mm in diam.. Margin: Lecanorine, rough, slightly flexuose or strongly flexuose, persistent, prominent (up to 0.5 mm), concolourous with the surrounding thallus (usually strongly pale spotted). Disk: Excavate or plane, black (sometimes turning blackish or reddish due to parasites), red, or brownish yellow, pruinose, pruina abundant. Exciple: White or orange. Parathecium (proper excipulum): 25-90 µm wide. Amphithecium (thalline excipulum): Present. Amphithecial Cortex: 50 µm wide. Epithecium: Apical cells slightly swollen. Hymenium: White. Interascal Hyphae: Scarcely branched or distinctly branched. Hypothecium: Up to 500 µm high; white or orange.

Asci: Up to 50 µm long, 8-12 µm wide; dehiscence lecanoralean.

Ascospores: Spores 8 per ascus, ellipsoid, ovoid, or oblong, (8)-10-14-(16) µm long, 5-6-(8) µm wide; septa absent.

Conidiomata: Present; immersed.

Conidia: Filiform or curved; (12)-15-25 µm long.

Secondary Metabolites: Isousnic acid or usnic acid.

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

(report generated 04.Okt.2007)