Lecidea leucothallina var. kujalae (Räsänen) Hertel

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

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

Type Information: Protologue: Hertel H., Biblioth. Lichenol. 58: 163-164 (1995) - Lecidea kujalae Räsänen: Räsänen V., Ann. Bot. Soc. Zool.-Bot. Fenn. Vanamo 18(1): 76, 1943; type specimen label data: Russia, Lapponia tulomensis, Petsamo, Trifona, saxicola in regio subalpina ad saxa granitica, 15 August 1930, V. Kujala (H, holotype).

Taxonomic Literature: Hertel H., Biblioth. Lichenol. 58: 164 (1995).

Biogeography: Alpine. Continent: Europe (Is, No, Rs, Su), Northern America (Greenland, Canada, USA), and Asia-Temperate (Japan, als Lecidea subleucothallina).

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

Thallus: Areolate (primarily areolate), subsquamulose, continuous throughout, dispersed along the periphery, continuous in the centre, or dispersed throughout and distinctly seperate; lobes angular or rounded at the front; separate thallus parts.2-.4 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted or rarely basally constricted. Upper Surface: Lemon (citrine) or brown (pale beige to very pale brown), plane or convex; not sorediate; without thalloconidia thalloconidia.

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

Ascocarps: Forming rarely on the pro- or hypothallus, soon sessile, slightly constricted or strongly constricted at the base, 12-180 per cm², .6-1.3-(2.3) mm in diam.. Margin: Not flexuose or slightly flexuose, persistent or excluded, 30-60 µm wide, epruinose. Disk: Plane or weakly convex to rarely strongly convex, rarely black or brown, epruinose, pruina scarce or abundant, without an umbo. Exciple: Hyphae radiating outwards; 3.5-5 µm wide; grey or brown; not inspersed with crystals or inspersed with crystals. Epithecium: Apical cells olive or black, cell pigment reacting with 10% HCl (in H2O). Hymenium: 40-(mean: 43-49)-55 µm high; white; iodine reaction: Lugol’s positive. Subhymenium: 5-(mean: 12-17)-27 µm high; white. Hypothecium: Brown or dark brown.

Ascospores: Ellipsoid or oblong, (5)-6.6-10.4-(14) µm long, (3.2)-4-4.7-(6) µm wide; wall not ornamented.

Conidia: (11)-13.5-16-(20) µm long.

Secondary Metabolites: Present, pannarin.

Spot Tests: Medulla: K –, C –, PD – (TEST!!) or + orange (control cortex microscopically!); ascocarp margin (in section): K –, C – disk: PD + orange; hypothecium: K – epihymenium: K –.

(report generated 04.Okt.2007)