Forty-five lichen species are reported from Aldabra, an atoll of four main islands and numerous islets located in the Indian Ocean. Thirty-three species are new to Aldabra. The lichen flora is characteristic of the Indian Ocean islands. It is dominated by pantropical species, showing a rather weak statistical correlation (Sørensson Coefficient) of 22.0 between Aldabra and the islands of the granitic Seychelles and a surprisingly higher correlation of 36.5 with the Chagos Archipelago more than five times the distance away.
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1 September 2002
The Lichens of Aldabra, with Comments on Their Distribution
Mark R. D. Seaward,
André Aptroot,
Francis A. Harrington
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The Bryologist
Vol. 105 • No. 3
Fall 2002
Vol. 105 • No. 3
Fall 2002