Acarospora fuscata - Swaledale Amandinea punctata - Great Ayton Moor Amandinea punctata ascus x 600 Arctoparmelia incurva-Swaledale Arthonia radiata - Sacriston Arthonia radiata ascus x 600 Arthopyrenia punctiformis Arthopyrenia punctiformis - Kelloe Arthopyrenia punctiformis asci & spores x 400 Aspicilia contorta - Nenthead Mine Aspicilia contorta ascus x 400 Aspicila calcarea-Helmsley Baeomyces rufus asci & spore Baeormyces rufus - Roseberry Common Belonia nidarosiensis with Xanthoria parietina-Wensleydale Caloplaca flavescens- Whitby Caloplaca flavescens-Clapham (1 of 1) Caloplaca flavescens-Ingleton Caloplaca thallincola-Bamburgh Candelariella vitellina-Bamburgh Cladonia diversa-Great Ayton Cladonia fimbriata-Weardale Cladonia floerkeana-Killdale Cladonia ramosa - Nenthead Mine Dermatocarpon miniatum-Malham Evernia prunastri-Cod Beck Osmotherley Evernia prunastri-Cotherstone Flavoparmelia caperata-Malham Gyalecta jenensis with Trentepholia- Malham Lacanactis abietina - Deepdale Woods Lecanactis abietina asci & spores x 400 Lecania cyrtella - Kelloe Lecania cyrtella ascus & spores x 400 Lecanora albescens-Low Force Teesdale Lecanora chlarotera-Derwnt Country Park Lecanora expallens - Bowlees Lecanora orosthea - Great Ayton Lecanora polytropa-Margrove Park Lecanora rupicola-Gravestone Wensleydale Lecanora rupicola-Wensleydale Leidea plana - Hasty Bank Leparia nivalis - Malham Lichen Mosaic on granite-Kirby Stephen Lichen Mosaic on sandstone-Wainstones N. Yorks. Lichen mosaic on smooth bark-Aberfeldy Melanelixia subaurifera-Derwent Country Park Mycoblastus sanguinarius - Tay Forest Aberfeldy Mycoblastus sanguinarius showing red medulla Mycoblastus sanguinarius spore x 100 Ochrolechia parella-Swaledale Ochrolechia parella-Swaledale Opegrapha varia - Strid Wood Bolton Abbey Opegrapha varia ascus & spore x 400 Ophioparma ventosa-Grest Ayton Moor Parmelia saxatilis asci x 400 Parmelia saxatilis-Great ayton Peltigera didactyla - Low Force Peltigera didactyla ascus x 400 Peltigera didactyla spores x 400 Peltigera hymenina apothecia - Sacriston Peltigera hymenina ascus x 400 Pertusaria pertusa ascus x400 Pertusaria pertusa-Bowlees Physcia adscendens-Margrove Park Physcia airpolia apothecia section with spores x400 Physcia airpolia-Bowlees Physcia caesia - Low Force Teesdale Physcia stellaris - Pinchinthorpe Physcia stellaris apothecia section x 40 Physcia stellaris ascus & spores x 400 Physcia tenella-Great Ayton Platismatia glauca-Casle Eden Dene Porina aenea Porina aenea - Bowlees Porina aenea asci & spores x 400 Porpidia cinereoatra-Roseberry Topping Porpidia maculatum - Holwick Quarry Teesdale Porpidia maculatum apothecia Porpidia maculatum ascus x 400 Porpidia tuberculosa- Malham Rhizocarpon geographicum ascus x600 Rhizocarpon geographicum-Reeth Rhizocarpon petrae-Arkengarthdale Rhizocarpon petraeum spore x 400 Sarcogyne regularis ascus x 400-Bowlees Sargogyne regularis-Low Force Teesdale Solenopsora candicans pattern on rock-Bowlees Thelotrema lepadinum - Bowlees Thelotrema lepidinum spores x 400 Tuckermanopsis chlorophylla-Great Ayton Moor Umbilicaria cylindrica - Holwick Quarry Umbilicaria cylindrica apothecia Verrucaria baldensis - Malham Verrucaria maura-Skinningrove Veruccaria mucosa-Skinningrove Xanthoria parietina ascus x600 Xanthoria parietina on Gravestone-Wensleydale Xanthoria parietina-Swaledale Xanthoria polycarpa-Kildale