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Lecidea saxonica H. Magn.

Data Set Maintenance: Data set standard item. Data set author(s): Hertel H. (99-01-01). Data set not revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Lecidea? Synonyms:? Lecidea ullrichii Hertel; Lecideaceae Chevall. (1826); Lecanorales.

Type Information: Protologue: Magnusson A.H., Bot. Not. 109: 145 (1956); type specimen label data: Germany, Sachsen, Erzgebirge, Altenberg, auf Basaltblöcken einer Steinrücke am NW-Fusse des Geising, 740 m, 17 June 1928, G. Schade 1928 (UPS, holotype).

Taxonomic Literature: Taxonomic notes: Variability of characters very insufficiently known. Hertel H., Biblioth. Lichenol. 58: 171 (1995).

Biogeography: Montane. Continent: Europe (Ge: Erzgebirge).

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

Thallus: Areolate (primarily areolate), continuous throughout @EXCL@ dispersed along the periphery, continuous in the centre @EXCL@ dispersed throughout and distinctly seperate; lobes angular @EXCL@ rounded at the front; separate thallus parts.1-.25 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: Pale brown, convex; not sorediate; without thalloconidia thalloconidia.

Upper Cortex: Epicortex present. Medulla: Iodine reaction in Lugol's solution negative.

Ascocarps: Soon sessile, slightly constricted or strongly constricted at the base, 150-250 per cm², .5-.7-(1) mm in diam.. Margin: Not flexuose, persistent or excluded, 40-60 µm wide, epruinose. Disk: Plane or weakly convex, black, epruinose, without an umbo. Exciple: Hyphae radiating outwards; 3-4 µm wide; grey or brown; not inspersed with crystals or inspersed with crystals. Epithecium: Apical cells olive, cell pigment reacting with 10% HCl (in H2O). Hymenium: 50-67 µm high; white; iodine reaction: Lugol’s positive. Subhymenium: 25-55 µm high; white or pale green. Hypothecium: Brownish yellow or brown.

Ascospores: Ellipsoid or oblong, (7.5)-9.5-11.2-(14) µm long, (4)-5.2-5.9-(8) µm wide; wall not ornamented.

Secondary Metabolites: Not detected.

Spot Tests: Medulla: K –, C –, PD – ascocarp margin (in section): K –, C – disk: C – hypothecium: K – epihymenium: K –.

(report generated 04.Okt.2007)

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