Bacidina arnoldiana (Körb.) V. Wirth & Vezda

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (02-09-04). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Bacidina. Lecanoraceae Körb. (1855); Lecanorales.

Type Information: Basionym: Bacidia arnoldiana Körb.

Taxonomic Literature: Ekman S., Opera Botanica 127: 1-148 [115-116] (1996).

Biogeography: Continent: Europe and Northern America (from the Appalachian mountains of western North Carolina and the coast from Oregon to British Columbia).

Ecology: Biotroph; lichenized; corticolous.

Thallus: Indistinct, not subdivided parts, granular or areolate (primarily areolate); separate thallus parts thin. Thallus Outline: Irregular. Upper Surface: Special structures present: (goniocysts, may or may not form coralline or isidia-like structures).

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, forming independently from the host thallus or mycelium, .4-.5-.6 mm in diam.. Margin: Persistent (usually) or excluded, distinct. Disk: Plane to more or less weakly convex (later), brown to grey-brown or dark brownish red, epruinose. Parathecium (proper excipulum): Pale brown or white. Epithecium: Apical cells slightly swollen or distinctly swollen, pale brown. Hymenium: 43-54-70 µm high; white. Hypothecium: Brownish yellow or dark brownish red.

Ascospores: (35)-39-40-42-(48) µm long, (.9)-1.2-1.3-1.6-(1.9) µm wide; septa present ((0-)1.5-3.2-6.4(-10) septa).

Conidiomata: Present; immersed (in granular thallus).

Conidia: Filiform (0-1-septate) or curved; 21-30 µm long, 1 µm wide.

Secondary Metabolites: Present (brown parts of apothecia K+ green-brown; Arnoldiana Brown in proper exciple, hypothecium, and hymenium).

(report generated 04.Okt.2007)