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Bacidina varia S. Ekman

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (02-09-05). Data set not revised; to be published after submission.

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

Taxonomic Literature: Ekman S., Opera Botanica 127: 1-148 [124-125] (1996).

Biogeography: Continent: Northern America (southern Louisiana and most parts of Florida, endemic ?).

Thallus: Crustose, not subdivided parts, granular, rimose (usually, often partly or entirely dissolving into granular goniocysts, then thallus becoming rather thick), or areolate (primarily areolate); separate thallus parts thin or thick (rather). Thallus Outline: Irregular. Upper Surface: Grey (to pale green to green); special structures present: (goniocysts); wrinkled (sometimes, or warted).

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, forming independently from the host thallus or mycelium, .2-.3-.4 mm in diam.. Margin: Lecideine/biatorine, excluded, distinct. Disk: Plane to weakly convex (later), red (pale pink, pale grey-pink, pale orange, brown-orange to purple-brown, sometimes mottled with different hues), grey-brown, brownish yellow, or brownish red, epruinose. Exciple: Not carbonized. Parathecium (proper excipulum): White, brownish yellow, pale brownish red, or lemon (citrine), not inspersed with crystals. Epithecium: Apical cells not swollen or slightly swollen. Hymenium: 42-52-61 µm high; white (or pale yellowish) or pale brown. Hypothecium: Yellow, white, brownish yellow, or pale brownish red.

Ascospores: Oval ("acicular to clavate or sometimes almost bacilliform, straight to curved to sigmoid"), (19)-23-29-41-(50) µm long, (1.2)-1.7-2-2.4-(2.5) µm wide; septa present ((3-)3.0-4.4-6.6(-7) septa).

Conidiomata: Present (uppermost part of wall concolorous with apothecia, 75-175 µm diam.); immersed (in thallus that is not dissolved into goniocysts).

Conidia: Filiform or more or less curved (or sigmoid, indistinctly 3-11-septate or sometimes non-septate); 14-55 µm long, .8 µm wide.

Secondary Metabolites: Present (all parts of apothecia K- to + intensifying, N-, except pale red-brown parts of proper exciple, hypothecium, and hymenium, which react K+ purplish, N+ orange; sometimes small amounts of Rubella Orange, sometimes also Laurocerasi Brown, in proper exciple, hypothecium and hymenium).

(report generated 04.Okt.2007)

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