Preliminary version 1 April 2016

Lethariella cladonioides (Nyl.) Krog

Norw. J. Bot. 23: 93 (1976).

 

 

Basionym: Chlorea cladonioides Nyl., Syn. Lich. 1: 276 (1860).

Synonym: Index Fungorum

Protolog: Data lacking.
Type locality: India, Sikkim, Himalaya, 12,000 ped., Hooker & Thomson 1731 (PC - holotype, H - isotype, BM - isotype).
Barcode: Data lacking.
Coordinates: Data lacking.

 

Thallus: subascending or decumbent, 3-5-10 cm high, dichotomously branched. Branches 0.5-0.8 mm wide, terete, rarely flattened and then wider, tapering apically. Colour orange or orange grey, pale to dark grey at the base. Surface smooth, longitudinally grooved or reticulately ridged. Soralia in upper parts of the branches, flat, irregularly spreading, with orange soredia. Cortex thin, fragile, 30-40 µm. Medulla lax or compressed. Axis mostly wide, with strands of pseudoparenchymatous tissue towards the centre in older parts. Apothecia extremely rare, 2-4 mm in diameter, thalline exciple orange or greyish brown, thalline margin without fibrils, disc brown, matt, spores ellipsoid, 3-5 / 5-8 µm (Krog 1976: 93).

Algae: Green algae.

Chemistry: Atranorin, canarione, psoromic acid, 2'-0-demethylpsoromic acid (Obermayer 2001: 322).
Atranorin and canarione ["canarionic acid"] in the cortex.
Race I: Psoromic acid, conpsoromic acid in the medulla, typical strain (Krog 1976: 93).
Race II: norstictic acid in the medulla (Krog 1976: 93).

Ecology: Terricolous or lignicolous.

Molecular data: Genbank

Distribution: Database

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