A HISTORY OF STAFFORDSHIRE 



in the more open districts, as on the high lands about Swithamly, 

 Flash and Quanford the gritstone and limestone rocks are rich in such 

 species as Placodium murorum, Coniocype furfuraceum, Gladina pungens, Pla- 

 tysma triste and Alec toria jubata. In the Wetton valley and the beautiful 

 valley of the Dove the rocks of mountain limestone form a congenial 

 home for some of the rarer species, as Umbillkaria polyphila, Platysma 

 g/auca, bright yellow patches of Lecidia geographica, Spbcerophoron coral- 

 /oides, Squamaria crassa, Lecanora parella and Solorina saccata; over a great 

 portion of the county the more conspicuous tree-loving species are singu- 

 larly absent, and only rarely are the tree trunks beautified with the con- 

 spicuous fronds of Ramalina fraxinea , R. fastigiata or Usnea barbate, 



In the rich woodland districts around Whitmore and Trentham the 

 trees are clothed with grey patches of Parmelia puherulenta^ P. pbysodes 

 and P. stellaris ; the old palings of some of the damp woods are coated 

 with Lecanora candelaria, Usnea birta, Parmelia olivacea and P. parietina ; 

 and the wild moorlands about Cannock and Norton, notwithstanding the 

 proximity of large colliery workings, are still a home for many of the 

 heath-loving species, as Cladonia pyxidata, C. cornucopioides, C. digitata, 

 C. rangiferina and Cladina syhatica. The sandstone rocks of the country 

 around Stone yield their special species, as Lecanora squamulosa, Placodium 

 cal/opismum and Verrucaria rupestris, and on the smooth bark of the holly 

 the lime and crab are the singular forms of Graphis scripta, G. e/egans, 

 Arthonia astroidea, A. lurida, Opegrapba imlgata and O. atra. 



The following list is an incomplete record of the Staffordshire lichens 

 compiled in part from Garner's Natural History of the County of Stafford 

 and the writer's personal observations. 



Family I. COLLEMACEI 

 Collema melaenum, Ach. 



crispum, Huds. 



cristatum, Hoffm. 



flacciclum, Ach. 



multipartitum, Sm. 



nigrescens, Huds. 

 Leptogium lacerum, Ach. 



var. pulvinatum (Hoff.) 



fragrans, Sm. 



tremelloides, L. 



turgidum, Ach. 



Schraderi, Bernh. 



Family II. LICHENACEI 

 Sphinctrina turbinata, Pers. 



anglica, Nyl. 

 Calcium trichiale, Ach. 



var. ferrugineum (Borr.) 



hyperellum, Ach. 



trachelinum, Ach. 



quercinum, Pers. 



curtum, Borr. 

 Coniocybe furfuracea, Ach. 

 Trachylia tigillaris, Fr. 



tympanclla, Fr. 

 Sphaerophoron coralloides, Pers. 



66 



Sphaerophoron fragile, Pers. 

 Baeomyces rufus, DC. 



icmadophilus, Ehrh. 

 Cladonia pungens, Flk. 



cervicornis, Schaer. 



delicata, Flk. 



var. subsquamosa (Nyl.) 



alcicornis, Flk. 



pyxidata, Fr. 



var. fimbriata (Hoffm.) 



gracilis, Hoffm. 



furcata, Hoffm. 



squamosa, Hoffm. 



cornucopioides, Fr. 



deformis, Hoffm. 



var. macilenta (Hoffrn.) 

 var. polydactyla (Flk.) 

 Cladina sylvatica, Hoffm. 



rangiferina, Hoffm. 



uncialis, Hoffm. 

 Stereocaulon pascliale, Ach. 



denudatum, Flk. 

 Usnea barbata, L. 



var. florida (L.) 

 var. hirta (L.) 

 var. plicata (L.) 



