Order: Peltigerales       Family: Nephromataceae Species: Nephroma laevigatum Growth type foliose. BLS Burren meeting 2009 Photos: On dead Hawthorn. The Burren, W Ireland. Large, shiny red-brown to grey-brown lobes, sometimes with small lobules on margins. Undersides whitish or buff, wrinkled. Chestnut-brown apothecia usually present on underside of longer, recurved lobes. Asci 8-spored, the spores 3-septate, colourless becoming brownish, 17-20 × 5-7 µm. Soredia absent. Micrograph below. Occurs in old oceanic woodlands in the west of Ireland on mossy tree trunks, damp rocks and walls. 'Old forest' indicator species. Medulla pale yellow, K+ purple Similar: Nephroma parile. Medulla white. Sorediate.

Micrograph

Nephroma laevigatum. BLS Burren meeting, April 2009