Coenogonium pineti (Schrad. ex Ach.) Lücking & Lumbsch

A careful comparison of the specimen cited below and European material of this cosmopolitan species revealed them to be identical. It is probably not rare in Thailand, but due to its very small, pale apothecia it is easily overlooked. Coenogonium pineti is a new addition to the Thai lichen biota.

Specimens examined:— THAILAND. Trat Province: Laem Ngob District; Black sand beach near Tumbol Laem Ngob, in an old ± disturbed mangrove forest with dominant Rhizophora apiculata, Rh. mucronata, Lumnitzera racemosa and Avicennia marina, ± 3 m, 12°10’11’’ N, 102°24’27’’ E, 25 February 2011, K. Kalb & P. Mongkolsuk (hb. Kalb 38905).