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Images of British Lichens

Leptogium palmatum (Huds.) Mont.
(= L. corniculatum (Hoffm.) Minks)

Thallus thin, gelatinous, lobes grey-brown to dark brown, to about 5mm wide, ± erect, convoluted or rolled into tubes, margins entire to ragged but not fimbriate, surface smooth to slightly rugulose-striate, isidia absent; apothecia said to be unknown in Britain. Amongst mosses on sheltered rocks and on dunes, throughout Britain but very local.

Refs: Smith et al. (2009), 549; Purvis et al. (1992), 353 (as L. corniculatum); Nordic Lichen Flora (2007) 3: 38, 186 (photo); Thor & Arvidsson (1999), 277 (photo, as L. corniculatum); Arup et al. (1997), 185 (photo, as L. corniculatum); Brodo et al. (2001), 403 (photo, as L. corniculatum); McCune & Geiser (2009), 179 (photo).

Leptogium palmatum
In moss and grass on basalt outcrop, Isle of Muck (BLS meeting), June 2012
Leptogium palmatum
In dune heath, with Peltigera malacea, Findhorn, Morayshire, April 2009

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© A.J. Silverside
Uploaded July 2012