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One of the most common rock-inhabiting Porina species, P. chlorotica grows exclusively on siliceous rock often by loughs and streams and in other damp places. The thin dull brown thallus, black spherical discs (perithecia) with hard protective outer band (involucrellum), K+ grey-brown in K reaction, and three-septate spores, distinguish it from all but P. aenea which always grows on trees.
Original text submitted by Vince J. Giavarini
|Simms, M. J., (2016). Porina chlorotica (Ach.) Müll.Arg.. [In] LichenIreland. |
http://www.habitas.org.uk/lichenireland/species.asp?item=19885 Accessed on 2016-12-10.