Phytologia 28: 334 (1974).

Basionym: Parmelia aldabrensis C. W. Dodge, Ann. Mo. Bot. Garden 46: 160 (1959).

Type locality: Republic of Seychelles, Aldabra. Data lacking.

Type locality coordinates: Data lacking.

Type locality photo: Data lacking.

Type scan: Data lacking.

Molecular barcode: Data lacking.

Thallus: foliose, adnate, pale grey to grey-green. Lobes 0.5 - 0.8 cm wide, deeply divided, margins ascending, crenate, ciliate, cilia up to 2.5 mm long. Upper side distinctly maculate. Medulla white. Under side smooth or somewhat rugose, medium to dark brown, rarely with a white mottled marginal zone, rhizines slender, scattered almost to the margins. Isidia and soredia absent. Apothecia numerous, marginal and submarginal, often eccentrically oriented on semitubular stipes, disc 0.5 - 1 - 1.5 cm diameter, with a small perforation, thalline margin smooth or weakly crenate, occasionally ciliate. Spores 13 - 17 / 5 - 8 µm. Pycnoconidia filiform, 12 - 15 µm long (Swinscow & Krog 1988: 169).

Photobiont: Data lacking.

Chemistry: Norstictic acid (K+ red, PD+ orange), stictic acid, atranorin (+) (Swinscow & Krog 1988: 169).

Ecology: Corticolous. In mangroves by the Indian Ocean and coastal lowlands to 1000 m altitude, rare but locally common.

Distribution type: East Africa including islands. - Kenya, Tanzania, Aldabra Islands and Madagascar (Swinscow & Krog 1988: 169).

Taxonomy: Data lacking.

Note: Parmotrema aldabrense may be considered the parent morph of the isidiate Parmotrema kwalense (xxx).

Distribution Database: Distributions

Distribution Database: Discover Life

Picture Database: Tropical Lichens

Molecular Database: Genbank

Synonym Database: Index Fungorum

Synonym Database: Mycobank