Lecidea auriculata Th. Fr. var. auriculata

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 confoederans Nyl.; Lecideaceae Chevall. (1826); Lecanorales.

Type Information: Protologue: Fries T.M., Lichenes Arctoi 213 (1861); type specimen label data: Greenland, Holsteinborg, on granite, J. Vahl (UPS, lectotype).

Taxonomic Literature: Fries T.M., Lichenogr. Scand. 499-501 (1874); Vainio E.A., Acta Soc. Fauna Fl. Fenn. 57(2): 1346-148 (1934); Anderson R.A., The Lichen Genus Lecidea in Rocky Mountain National Park, 30-32 (Diss. Univ. Colorado, Boulder; 1964); Hertel H., Decheniana 127: 62 (1975); Nowak J., Tobolewski Z., Porosty Polskie (Warszawa & Kraków) 550 (1975); Hertel H., Khumbu Himal 6: 233-234 (1977); Hertel H., Mitt. Bot. München 13: 339-342 (1977); Inoue M., J. Sci. Hiroshima Univ., Ser. B, Div. 2 (Bot.), 18(1): 26-28 (1982); Purvis O.W., James P.W., Lichenologist 17: 229-232 (1985); Clauzade G., Roux C., Bull. Soc. Bot. Centre-Ouest, nouv. ser., num. spec. 7: 463 (1985); Schwab A.J., Mitt. Bot. München 22: 307-312 (1986); Hertel H., Mitt. Bot. München 28: 219-220 (1989); Hertel H., Mitt. Bot. München 30: 306-307 (1991); Hawksworth D.L., Coppins B.J. in Purvis O.W. et al. 324 (1992); Inoue M., J. Hattori Bot. Lab. 76: 193 (1994); Hertel H., Biblioth. Lichenol. 58: 154-155 (1995).

Biogeography: Alpine. Continent: Europe (Au, Br, Cz, Da, Fa, Fe, Ge, Hb, He, Is, It, No, Po, Rs, Sb, Su), Northern America (Greenland, Canada (N.W.T., Yukon, Quebec, Newfoundland), USA (Alaska, Colorado)), Southern America (Argentinia, Falkland Isl.), Asia-Temperate (Siberia, Nepal, Japan), and Australasia (Tasmania).

Ecology: Biotroph; lichenized; endosubstratic or episubstratic; substrate non-calciferous or metalliferous.

Thallus: Not subdivided parts, rarely areolate (primarily areolate), continuous throughout, dispersed along the periphery, continuous in the centre, or dispersed throughout and distinctly seperate; lobes angular at the front; separate thallus parts 0-.8 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: White or red (rarely rusty coloured by Fe), plane; not sorediate; without thalloconidia thalloconidia.

Medulla: Iodine reaction very rarely in Lugol's solution negative or in Lugol's solution positive.

Ascocarps: Soon sessile, strongly constricted at the base, 5-100 per cm², .6-1.8-(4) mm in diam.. Margin: Not flexuose, slightly flexuose, or strongly flexuose, persistent or excluded, indistinct, 30-150 µm wide, epruinose. Disk: Plane, weakly convex, or strongly convex, black, epruinose, pruina rarely scarce, without an umbo. Exciple: Hyphae radiating outwards (in smaller apoth?) or intricately interwoven, with no predominant orientation (normally, when seen in KOH); 2-4.5 µm wide; grey or pink (rosé); not inspersed with crystals or inspersed with crystals. Epithecium: Apical cells green or normally turquoise, cell pigment HCl+ blue. Hymenium: 30-52 µm high; white or pale green; iodine reaction: Lugol’s positive. Subhymenium: 4-25 µm high; white, pale green, or lemon (citrine). Hypothecium: Brownish yellow or brown.

Ascospores: Oblong, cylindrical, or oblong-obtuse, (5.5)-5.5-11.2-(14) µm long, (1.8)-2.2-3.5-(4) µm wide; wall not ornamented.

Conidia: (5.5)-7-10-(15) µm long.

Secondary Metabolites: Not detected or present, 2'-O-methylperlatolic acid and normally confluentic acid and rarely porphyrilic acid.

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

(report generated 04.Okt.2007)