Previous page Next page

Images of British Lichens

Rhizocarpon oederi (Weber) Körb.

Thallus a rust-coloured, cracked-areolate crust; apothecia small (c. 0.5 mm diameter), clustered, black, initially concave but disc becoming domed, with minute, raised folds (gyrose). Locally frequent in the north and west, on base-poor but iron-rich rocks.

Refs: Smith et al. (2009), 803; Purvis et al. (1992), 539; Dobson (2005), 388 (photo); Dobson (2011), 392 (photo); Jahns (1983), 208-9 (photo); Wirth (1995), 2: 805, 815 (photo); Wirth, Hauck & Schulz (2013), 2: 986, 995 (photo).

Rhizocarpon oederi
Rhizocarpon oederi
On metalliferous, upland rockface, Langdon Common, Co. Durham, June 2009
Rhizocarpon oederi
Intermixed with Tremolecia atrata (slightly lighter-coloured areoles with smaller, concave, immersed apothecia),
on metalliferous rock in montane block scree, Braemar, Aberdeenshire, March 2008

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 June 2009, last updated September 2013