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Lecidea grummannii 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: accepted or basionymous. Taxonomic rank: species. Lecidea. Lecideaceae Chevall. (1826); Lecanorales.

Type Information: Protologue: Hertel H., Herzogia 1: 28 (1968); type specimen label data: Austria, Kärnten, Karnische Alpen, Raudenspitze über dem Hochweißsteinhaus bei St. Lorenzen im Lesachtal, 2200 m, 23 August 1967, H. Hertel 8028 (M, holotype).

Taxonomic Literature: Taxonomic notes: Variability of characters very insufficiently known. Hertel H., Herzogia 1: 28 (1968); Hertel H., Herzogia 1: 421 (1970); Hertel H., Biblioth. Lichenol. 58: 159-160 (1995).

Biogeography: Alpine. Continent: Europe (Au).

Ecology: Biotroph (matrix: Acarospora impressula); lichenicolous (matrix: Acarospora impressula); episubstratic. Host or Phorophyte Taxonomy: Acarospora.

Thallus: Areolate (primarily areolate), continuous throughout; lobes angular or rounded at the front; separate thallus parts.3-.4 mm thick. Thallus Size and Differentiation: Small; main branches basally not constricted or basally constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: Brown (beige), plane or convex; not sorediate; without thalloconidia thalloconidia.

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

Ascocarps: Forming on the pro- or hypothallus, not emerging (TEST!!), soon sessile or becoming adnate, not constricted or slightly constricted at the base, 60-100 per cm², .4-.5-(.8) mm in diam.. Margin: Not flexuose, persistent, 20-45 µm wide, epruinose. Disk: Plane to weakly convex, black, epruinose, without an umbo. Exciple: Hyphae radiating outwards; grey (TEST); inspersed with crystals. Epithecium: Apical cells turquoise, cell pigment HCl+ blue. Hymenium: 55-65 µm high; white or pale green; iodine reaction: Lugol’s positive. Subhymenium: 5 µm high; white. Hypothecium: White or brownish yellow.

Ascospores: Broadly ellipsoid, (6)-7.2-7.6-(9) µm long, (4.5)-5.2-5.6-(7) µm wide; wall not ornamented.

Secondary Metabolites: Present, gyrophoric acid and lecanoric acid.

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

(report generated 04.Okt.2007)

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