186 Rev. E. Williams's List of SJiroj)shire Lichens. 



Lichen gracilis [Cladonia gracilis, Fr.']. Stiperstones Heath. 

 Lichen hymeneus [Pertusaria Wiilfenii, DC]. Trunks of trees (Dr. 



J. E. Smith). 

 Lichen inquinans [Trachylia tympanella, Fr.']. Old pales. 

 Lichen inclusus [Thelotrema lepadinnm, Ach.']. Holly trees on Acton 



BurneU HiU. 

 Lichen linceus [Opegrapha lyncea, Borr.]. Trunks of trees. 

 Lichen herhaceus [Ricasolia herbacea, D. N.']. (See Icetevirens.) 

 Lichen hirtus [Usnea barbata, Fr., forma hirta]. Trunks of trees. 

 Lichen hispidus [Cetraria aculeata, Fr.]. Walls on Frodesley Hill ; 



rock on Overley Hill; "Wrekin; Stiperstones; Caradoc; Brown Clee. 

 Lichen horizontalis [Peltigera horizontalis, Hffm.~\. East waU of 



Frodesley Hill and Acton Burnell Hill, 

 Lichen hypnorum [E. Bot. 740]. "WhitecKff, near Ludlow. 

 Lichen jubatus [Alectoria jubata, Ach.~\. Wall of Frodesley Park; 



Upton Park pales ; Pimhill Rocks ; Caradoc ; Stiperstones. 

 Lichen Icetevirens' [Bicasolia herbacea, De N.]. On stones at Comb 



Floyd, near Bishop's Castle (Dillenius). 

 Lichen luteus (luteo-alhus) [Lecanora cerina, var. pyracea, Ach.]. 



Trunks of trees. 

 Lichen niger [Pannaria corallinoides, Schcer.]. On Cound church- 

 yard-wall. 

 Liclien nigrescens [Collema nigreseens, Ac7i.]. Old ash trees near 



Radnor Bridge ; crab-trees on Pontesford Hill and about Pulver- 



bach. 

 Lichen (Ecleri [this, in all probability, comprehends many things, as 



Lecidea petrsea, var. (Ederi (E. Bot.1117), Lecidea melanophsea, Fr., 



and forms of Urceolaria, &c.]. Stiperstones. 

 lAchen olivaceus [Parmelia olivacea, Ach.]. Trunks of trees ; common. 

 Lichen oniphalocles [Parmelia saxatilis, Ach., var. omphalodes, Ach.]. 



Rocks on Haughmond Hill. 

 Lichen pallescens [Lecanora pareUa, Ach., var. pallescens, Ach.]. On 



trunks of trees. 

 Lichen parilis [Nephroma laevigatum, Ach., var. parile, Ach.]. In 



an old stone-quarry on Cound Moor. 

 Lichen parellus [Lecanora pareUa, Ac7i.]. Trunks of trees. 

 Lichen parietinus [Physcia parietina (Linn.)]. Walls and trunks of 



trees. 

 Lichen perlatus [Parmelia perlata, Ach.]. Trunks of trees ; common. 

 Lichen pertusus [Pertusaria communis, DG.]. Bark of trees and 



walls. 

 Lichen physocles [Parmelia physodes, Ach.]. Old pales ; common. 

 Lichen polyrhizus [UmbiHcaria polyrrhiza {Linn.y]. Stiperstones. 

 Lichen prunastri [Evernia prunastri, Ach.]. Branches of bushes and 



trees ; common. 



