Bacidina squamellosa 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 [123-124] (1996).

Biogeography: Continent: Northern America (Florida, endemic ?).

Ecology: Biotroph; lichenized; corticolous.

Thallus: Crustose (thallus of discrete or contiguous, prostrate to ascending, small, more or less flat, deeply incised squamules, the lobes of which are 20-30 µm wide), squamulose (thallus of discrete or contiguous, prostrate to ascending, small, more or less flat, deeply incised squamules, the lobes of which are 20-30 µm wide); separate thallus parts thin. Thallus Outline: Irregular.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, forming independently from the host thallus or mycelium, .3-.4-.5 mm in diam.. Margin: Lecideine/biatorine, excluded, distinct. Disk: Plane to weakly convex (later), red ("pale pink"), epruinose. Exciple: Not carbonized. Parathecium (proper excipulum): White, not inspersed with crystals. Epithecium: Apical cells slightly swollen or distinctly swollen. Hymenium: 53-57-62 µm high; white. Hypothecium: White.

Ascospores: Oval ("acicular and straight, curved or sigmoid"), (37)-45-46-48-(60) µm long, (.9)-1.3-1.3-1.4-(1.6) µm wide; septa present ((3-)3.2-3.8-4.4(-7) septa).

Conidiomata: Present (colourless, 75-100 µm diam.); immersed (in thallus) or adnate.

Conidia: Filiform (indistinctly 3-7-septate) or slightly curved; 41-58 µm long, 1.1 µm wide.

(report generated 04.Okt.2007)