Order: Lecanorales       Family: Sarrameanaceae Species: Loxospora elatina s. lat. Growth type crustose. Identified by John Douglass Photos: On Oak. Glengarriff, Co. Cork, SW Ireland Thin effuse thallus, smooth or slightly warted, whitish-grey or grey, often with distinct white prothallus. Abundant soft convex soralia, pale yellow, yellow-grey or bluish-green that can become confluent. Apothecia very rare, discs red-brown. Spores 3-5 septate, 35-50 x 4-5 µm. Thallus and soralia: K+ bright yellow, P+ yellow-orange, UV- Found on shaded acid bark in established, damp woodlands, especially on Oak and Birch. An 'Old woodland indicator', most frequently found in the west of Ireland. Similar: Mycoblastus caesius, K-, C-, KC-, P-, UV+ white

Loxospora elatina November 2009 and April 2010