Previous page Next page
 
lastdragon.org

Images of British Lichens



Cladonia borealis S.Stenroos


A member of the C. coccifera group, with neat, somewhat trumpet-shaped, grey-green or bluish-green podetia, exterior smooth or with cortex broken into small islands (areolate-corticate), soredia absent, podetial squamules sparse or more often lacking, interior of cup with flattened, corticate granules (much like the gemmae of the liverwort, Lunularia, and evidently rain-distributed in the same way), basal squamules relatively large, margins ascending, incised; pycnidia and apothecia bright red. Distribution imperfectly known but evidently a local or rare species of upland and exposed heaths in the north and west.

Refs: Stenroos (1980), 160-162 (line drawings); Nordic Lichen Flora (2013) 5: 22, 94 (photo); Smith et al. (2009), 325; Wirth (1995), 1: 298, 299 (photo); Krog et al. (1994), 149 (photo); Stenroos et al. (2011) 119 (photo); Hansen & Andersen (1995), 25 (photo); Brodo et al. (2001), 239, 241 (photo); Øvstedal & Lewis Smith (2001), 164, plate 30 (photo, but might be pleurota??); Lichen Atlas of the British Isles 2: 1748 (1996). [van Herk & Aptroot (2004, 2013), 130-131, and Aptroot et al. (2011), 48-9 (photos, podetia with large squamules, but morph accepted by Ahti & Stenroos in Nordic Lichen Flora)]

FGBI: http://fungi.myspecies.info/all-fungi/cladonia-borealis

Cladonia borealis, close view
Cladonia borealis, close view
Cladonia borealis
By track in sandy pine (Pinus sylvestris) forest, Culbin Sands, Morayshire, August 2010 (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 March 2012, last updated January 2016