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This blue-white to grey powdery lichen favours acid-barked trees such as birch and alder, but especially conifers and conifer plantations. Spot tests K+ yellowish, all else negative. It has fine powdery granules. White hyphae are rather clingy so are abundant in the crevices in the substratum. However, they do not form a hypothallus. In Ireland, it occurs mainly in the north and west.
Original text submitted by Vince J. Giavarini
|Simms, M. J., (2016). Lepraria jackii Tønsberg. [In] LichenIreland. |
http://www.habitas.org.uk/lichenireland/species.asp?item=41613 Accessed on 2016-05-03.