Parmotrema andinum (Müll. Arg.) Hale

Phytologia 28: 224 (1974).

Basionym: Parmelia andina Müll. Arg., Revue Mycol. 1: 169 (1879).

 

Thallus: foliose, coriaceous, loosely attached, pale grey, medium grey, or grey-green. Lobes up to 2 cm wide, rounded, entire or crenate, eciliate. Upper side usually matt, faintly to distinctly maculate (especially in the vicinity of the apothecia), pitted, folded, or rugose towards the centre. Medulla white. Under side black, matt and rugose, with a white, brown, or mottled marginal zone, rhizines short, black in central parts, pale brown or white peripherally, unevenly distributed. Isidia and soredia absent. Apothecia submarginal to laminal, often numerous, sometimes crowded and obscuring the thallus, 1 - 3 - 4 cm in diameter, thalline exciple rugose, strongly maculate, disc widely perforate. Spores 13 - 18 / 8 - 10 µm. Pycnoconidia filiform, 10 - 16 - 20 µm long (Swinscow & Krog 1988: 169).

Algae: Probably Trebouxia.

Chemistry: Lecanoric acid (C+ red), atranorin.

Ecology: Corticolous, rarely saxicolous. In East Africa in dry, well-lit sites on open hillsides, at edge of woodland, and in parks and gardens, common and widespread at 900 to 2400 m altitude.

Distribution: Africa, Asia, South America.

Note: Parmotrema andinum may be considered the parent morph of the sorediate P. austrosinense.

Distribution Database: Distributions

Distribution Database: Discover Life

Picture Database: Tropical Lichens

Molecular Database: Genbank

Synonym Database: Index Fungorum

Synonym Database: Mycobank