The morphology, anatomy, chemistry, ecology and distribution of ‘Buelli’ lindingeri and Rinodina anomala, R. biloculata, R. euskadiensis, R. kalbiiR. madeirensis are treated.Rinodina kalbii from Corsica and Sardinia is described as new. A key to the species is provided.

Gyalidea cylindrical is described as new, living on pleurocarpic epiphytic mosses in shaded situations.Gyalidea phyllophila is recorded for the first time in Europe. Both of them have been collected in the French Atlantic Pyrénées.

Phoma evemiae sp.nov. on Evemia prunastri and Polycoccum slaptoniense sp.nov. (on Xanthoria parietind) are described as new to science. Three further species are reported from the British Isles for the first time: Dactylospora microspore Etayo,Monodictys anaptychiae (Lindau) D. Hawksw., and Sphaerellothecium araneosum (Arnold) Zopf. Notes are also presented on Bispora lichenumDiederich, Opegrapha physciaria (Nyl.) D. Hawksw. & Coppins, Polycoccum kerneri Steiner, Pronectria xanthoriae Lowen & Diederich, Stigmidium degelii R. Sant., and S. hagenii(Rehm) Hafellner.

Two new species are described: .Megalospora occidentalis Kantvilas from Western Australia, with solitary muriform ascospores; M. pulverata Kantvilas from Tasmania, with typically two-spored asci and bicellular ascospores. The new combination M. melanodermia var. galactocarpa (Zahlbr.) Kantvilas is proposed. Megalospora taylori Dodge, described from Tasmania, is a synonym of M. gompholoma subsp. fuscolineata Sipman. New records are reported for Megaloblastenia flavidoatra(Nyl.) Sipman (from Tasmania), .Megalospora disjuncta Sipman (from New South Wales and Queensland), and M. subtuberculosa (Knight) Sipman (from New South Wales). Additional data for Austroblastenia pupa Sipman, M. gompholomasubsp. fuscolineata Sipman and M. lopadioides Sipman, and a key for the family in Australia are presented. M. disjuncta Sipman is lectotypified. Biogeographical and ecological patterns are discussed briefly.

Saxicolous and terricolous lichen communities associated with the Blair Atholl limestone are described by reference to two main sites—the Meall Breac area and Tulach Hill (including Creag Odhar). Several rare arctic-alpine lichens occur in the Meall Breac area, including the first population of Cetraria nivalis to be found outside acidic lichen-moss heaths in Great Britain. Tulach Hill and Creag Odhar, in contrast, are at relatively low altitudes and more sheltered, supporting a range of species not normally seen in the Highlands. These communities, most of which lie in the anthropogenic zone that was formerly covered by woodland, are compared with those of major montane calcareous sites in Scotland that have always been above the tree line.