to LIAS


Botanische Staatssammlung München © 1995–2008
Data remain intellectual property of the data set authors.



Lecanora pseudistera Nyl.

Data Set Maintenance: Data set standard item. Data set author(s): Lumbsch H. T. & Guderley R. (98-09-01). Data set to be published after submission; 98-09-01.

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

Taxonomic Literature: Lumbsch, H.T., J. Hattori Bot. Lab. 77: 1-175 [128-135] (1994); Brodo, I.M., Beih. Nova Hedwigia 79: 63-185 [150-152] (1984).

Biogeography: Continent: Africa, Asia-Temperate, Australasia, Europe, Northern America, Southern America, and Pacific.

Ecology: Terricolous; substrate non-calciferous.

Thallus: Areolate (primarily areolate); separate thallus parts thin or thick. Thallus Outline: Lobed; indistinct; soon disappearing. Upper Surface: Verrucose or verruculose, lemon (citrine) or pale grey, matt, smooth; epruinose; not sorediate.

Upper Cortex: Gelatinized.

Ascocarps: Soon sessile. Margin: Lecanorine, verrucose or verruculose, smooth, not flexuose or slightly flexuose, persistent, indistinct to prominent, concolourous with the surrounding thallus; with a thin, inner rim visible between disk and thalline margin. Disk: Plane, brownish red, epruinose. Parathecium (proper excipulum): White, dissolving in 10% KOH. Amphithecium (thalline excipulum): Present; crystals small, not dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, indistinct or distinctly developed, eucortical, 15-20-25 µm wide, not basally widened, 15-20-25 µm wide at the base; inspersed with oil droplets. Episamma: Without episamma. Epithecium: Apical cells slightly swollen or distinctly swollen, brownish red, insoluble in 10% KOH. Hymenium: Not inspers. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, ellipsoid, (8)-8.5-10-13.5-(14) µm long, 5-6.2-7.5-(8) µm wide; wall thin, not ornamented.

Conidiomata: Immersed.

Pycnidia: Cerebriform. Conidiophores: Vobis-type II. Conidia: Filiform; 15-16.5-18 µm long.

Secondary Metabolites: 2'-O-methylperlatolic acid and atranorin, of the following substance class(es): orcinol depsides and (anthra-)quinones.

Spot Tests: Upper surface: C –, PD –.

(report generated 04.Okt.2007)


In case that additional characters and states are required to be included in this data set, consult the LIAS Instructions to Participants and follow the procedures described there.

LIAS Home