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Lecidella enteroleucella (Nyl.) Hertel

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (01-06-25). Data set reviewer(s): Knoph J.-G.; revised (03-10-22); to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Lecidella. Synonyms: Lecidea nagasakensis Nyl.; Lecidea adpressula Müll. Arg.; Lecidea tapetiformis Zahlbr.; Lecidea setschwanensis Zahlbr.; Lecidea kelungana Zahlbr.; Lecidea lentigerella Zahlbr.; Lecanoraceae Körb. (1855); Lecanorales.

Type Information: Basionym: Lecidea enteroleucella Nyl. in Nyl. & Cromb. 1883. Journ. Linn. Soc. Bot. 20: 67-68.

Taxonomic Literature: Knoph, J.-G. (1990): Untersuchungen an gesteinsbewohnenden xanthonhaltigen Sippen der Flechtengattung Lecidella (Lecanoraceae, Lecanorales) unter besonderer Berücksichtigung von außereuropäischen Proben exklusive Amerika; Bibl. Lichenol. 36: 1-183 [139-150].
Knoph, J.-G. & Leuckert, C. (1994): Chemotaxonomic studies in the saxicolous species of the lichen genus Lecidella (Lecanoraceae, Lecanorales) in America. - Nova Hedwigia 59: 455-508 [484-486].
Knoph, J.-G. & Leuckert, C. (2000): Chemotaxonomische Studien in der Gattung Lecidella (Lecanorales, Lecanoraceae) III. Die gesteinsbewohnenden Arten mit farblosem Hypothecium unter besonderer Berücksichtigung von europäischem Material. - Herzogia 14: 1-26 [8-9].

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

Ecology: Biotroph; lichenized; substrate non-calciferous.

Thallus: Crustose, rimose or areolate (primarily areolate); separate thallus parts thin (0.1-0.3 mm). Thallus Outline: Persistent (about 0.1 mm wide, rarely distinct); black, grey, or dark grey. Upper Surface: Pale grey (2 older specimens) or lemon (citrine) (with a slightly greenish touch), matt or weakly glossy (shiny), smooth.

Medulla: Iodine reaction in Lugol's solution negative.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Becoming adnate (sometimes when young) or soon sessile, not constricted or slightly constricted at the base, .2-.4-.8 mm in diam.. Margin: Lecideine/biatorine, soon excluded (often), indistinct. Disk: Plane or weakly convex, black, olive (olivaceous, when wet), or brownish red, epruinose. Exciple: Carbonized; brown, dark green, or grey-green (rarely). Parathecium (proper excipulum): White. Amphithecium (thalline excipulum): Present. Epithecium: Apical cells slightly swollen, brown, dark green (rarely), or olive (olivaceous). Hymenium: White. Hypothecium: White or weakly brownish yellow (rarely).

Ascospores: c. 8 per ascus, ellipsoid, 8-13 µm long, 4.5-6.5 µm wide; septa absent; wall thick (not halonate), distinctly differentiated into primary and secondary wall (not halonate), not ornamented (not halonate).

Conidiomata: Immersed.

Pycnidia: Globular. Conidiophores: Vobis-type III. Conidia: Filiform; 18-25 µm long.

Secondary Metabolites: 3-O-methylthiophanic acid (= 2,4,5,7-Tetrachloro-3-O-methylnorlichexanthone), 4,5-dichloro-3-O-methylnorlichexanthone, 4,5-dichloronorlichexanthone, arthothelin (2,4,5-trichloronorlichexanthone), atranorin, chloroatranorin, hopane-6a,22-diol, or thuringione (= 2,4,5-trichloro-3-O-methylnorlichexanthone) (+ rarely Trichlorlichexanthone), of the following substance class(es): xanthones.

Spot Tests: Upper surface: K + deep yellow, C + orange, PD + yellow.

(report generated 04.Okt.2007)

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