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

Lecidea diducens Nyl.

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

Type Information: Protologue: Nylander W., Flora 48: 148 (1865); type specimen label data: U.K., Channel Islands, Jersey, Noirmont Pt., 1864, Ch. Larbalestier 104 (H-Nyl 15704, holotype).

Taxonomic Literature: Magnusson H., Bot. Notiser 1951: 68 (1951); Hertel H., Herzogia 1: 35 (1968); Hertel H., Herzogia 2: 43-44 (1970); Culberson C.F., Hertel H., Bryologist 75: 373-375 (1972); Hertel H., Decheniana 127: 65 (1975); Nowak J., Tobolewski Z., Porosty Polskie (Warszawa & Kraków) 552 (1975); Hertel H., Khumbu Himal 6: 243-244 (1977); Hertel H., Mitt. Bot. München 13: 340, 343-344 (1977); Inoue M., J. Sci. Hiroshima Univ., Ser. B, Div. 2 (Bot.), 18(1): 30-33 (1982); Purvis O.W., James P.W., Lichenologist 17: 229-232 (1985); Schwab A.J., Mitt. Bot. München 22: 322-324 (1986); Hertel H., Mitt. Bot. München 28: 220 (1989); Rambold G., Biblioth. Lichenol. 34: 208-210 (1989); Hertel H., Mitt. Bot. München 30: 307-308 (1991); Inoue M., J. Hattori Bot. Lab. 76: 193 (1994); Hertel H., Biblioth. Lichenol. 58: 158 (1995).

Biogeography: Colline (sea shores) and alpine. Continent: Europe (Au, Br, Da, Fe, Ga, Ge, He, No, Su), Northern America (Canada (Quebec), USA (Alaska)), Southern America (Chile), Asia-Temperate (E. Siberia, Nepal), and Australasia (Australia, N.Z. (Canterbury, Otago)).

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

Thallus: Not subdivided parts, 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-.4 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: White, lemon (citrine), brownish yellow, grey, brown, or red (rusty coloured by Fe), plane; not sorediate; without thalloconidia thalloconidia.

Medulla: Iodine reaction in Lugol's solution positive.

Ascocarps: Soon sessile, slightly constricted or strongly constricted at the base, 10-80 per cm², .5-1.5-(3) mm in diam.. Margin: Not flexuose, slightly flexuose, or strongly flexuose, persistent or excluded, indistinct, 80-200 µm wide, epruinose. Disk: Plane to strongly convex, black, epruinose, pruina scarce or abundant, without an umbo. Exciple: Hyphae intricately interwoven, with no predominant orientation; 2-3 µm wide; grey or pink (rosé); inspersed with crystals. Epithecium: Apical cells olive, green, or turquoise, cell pigment reacting with 10% HCl (in H2O), cell pigment HCl+ blue. Hymenium: 27-45-(55) µm high; white; iodine reaction: Lugol’s positive. Subhymenium: 4-13 µm high; white or rarely pale green. Hypothecium: Brownish yellow or brown.

Ascospores: Cylindrical or oblong-obtuse, (5.5)-7.2-10.2-(12.5) µm long, (1.7)-2.3-3.4-(3.5) µm wide; wall not ornamented.

Secondary Metabolites: Present, 2'-O-methylanziaic acid or confluentic acid.

Spot Tests: Medulla: K –, C –, PD – ascocarp margin (in section): K – or rarely + bluish red, C + red; disk: C – hypothecium: K – epihymenium: K –.

(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.