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Bacidina egenuloidea (Fink) 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. Taxonomic rank: species. Bacidina. Lecanoraceae Körb. (1855); Lecanorales.

Type Information: Basionym: Bacidia egenuloidea Fink 1921.

Taxonomic Literature: Ekman S., Opera Botanica 127: 1-148 [121-122] (1996).

Biogeography: Continent: Northern America (known only from the type locality in Ohio, endemic ?).

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

Thallus: Crustose, granular (entirely dissolved into granules (goniocysts) that are more or less coherent and form isidia-like or coralline structures); separate thallus parts thin. Thallus Outline: Irregular. Upper Surface: Grey (green-); special structures present: (goniocysts).

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, persistent, distinct. Disk: Plane, brownish yellow (pale orange to purple-brown) or brownish red, epruinose. Exciple: Not carbonized. Parathecium (proper excipulum): Pale brown, white, or lemon (citrine), not inspersed with crystals. Epithecium: Apical cells not swollen (some), slightly swollen, or distinctly swollen. Hymenium: Pale brown or white (in lower part, or diffusely pale orange). Hypothecium: Yellow ("very pale orange") or white.

Ascospores: Oval ("acicular, straight or slightly curved to sigmoid"), (20)-25-29-34-(42) µm long, (.9)-1.1-1.5-1.9-(2.1) µm wide; septa present ((0-)0.5-1.5-2.4(-5) septa).

Conidiomata: Present; immersed (in thallus, colourless, 75-200 µm diam.).

Conidia: Filiform (conidia of three types: 1 (the commonest type): filiform, straight or slightly curved to sigmoid, strongly conglutinated, 0-1-septate, 35-49 x 0.8-1.2 µm; 2: filiform, curved, not conglutinated, non-septate, 9-14 x 0.6-0.8 µm and 3: acicular, thicker at the proximal end, straight or curved, not conglutinated, non-septate, 16-20 x 1.0 µm; type 1 occur in seperate pycnidia, whereas type 2 and 3 occur mixed in the same pycnidia).

Secondary Metabolites: Present (Laurocerasi Brown in proper exciple and hymenium, Rubella Orange in proper exciple, hypothecium, and hymenium).

(report generated 04.Okt.2007)

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