lastdragon.org
Alan Silverside's Lichen Pages
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. 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); Jahns (1983), 208-9 (photo); Wirth (1995), 2: 805, 815 (photo).
Intermixed with Tremolecia atrata (slightly lighter-coloured areoles with smaller, concave, immersed apothecia),
on metalliferous rock in montane block scree, Braemar, Aberdeenshire, March 2008
Back to Lichens HOME PAGE
Back to Lichens INDEX OF SPECIESConditions of Use and e-mail contact
© A.J. Silverside
Uploaded June 2009, last modified June 2010
