Previous page Next page

Images of British Lichens

Arthonia ilicina T. Taylor

Thallus a thin or immersed crust, white to yellowish-cream, often bounded by a dark brown prothallus, with embedded, dark brown to black, irregularly rounded to elongate apothecia, to 1mm in diameter, or to 2mm in length if elongated; ascospores mostly 5–6-septate. On nutrient-rich, usually smooth bark, locally frequent in old, oceanic woodland in the north and west. Generally recognisable in the field but part of a large genus in which chemical tests and microscopic examination are important.

Refs: Smith et al. (2009), 163; Purvis et al. (1992), 83; Dobson (2005), 66-7 (photo); Dobson (2011), 73 (photo); Puntillo (1996), plate 3 (photo).


Arthonia ilicina
Arthonia ilicina
On Hazel (Corylus avellana) trunk, Ardilistry, Islay, May 2011, BLS meeting

Previous page   Next page

Lichens HOME PAGE | Index of Species | Conditions of Use and e-mail contact | References | Site Home Page

© A.J. Silverside
Uploaded February 2013, last updated January 2016