294 LICHENACEI. [PELTIGERA. 



Grampians, Scotland. B. M. : Betchworth, Surrey ; Bridge Rocks and 

 near Henfield, Sussex; New Forest, Hants; Dartmoor, Ilsham Walk, 

 Torquay, and near Totnes, S. Devon ; Pentire, Cornwall ; Leigh Woods, 

 near Bristol, Gloucestershire ; Charnwood Forest, Leicestershire ; Mal- 

 vern, Worcestershire ; Oswestry and Whitecliffe Rocks, Shropshire ; 

 Aberdovey and Barmouth, Merionethshire ; Bettws-y-Coed, Carnarvon- 

 shire ; Stogdale, Cleveland, Yorkshire ; Teesdale, Durham ; near Kendal, 

 Westmoreland ; Keswick, Cumberland ; The Cheviots, Northumberland. 

 New Galloway, Kirkcudbrightshire ; Swanston, near Edinburgh ; Bowl- 

 ing Bay, Dunbartonshire ; Dunoon and Barcakline, Argyleshire ; Loch 

 Katrine, near Caliander, Kennaore, Craighall, and Dunkeld, Perthshire ; 

 Craig Cluny, Braemar, Aberdeenshire ; Lochaber, Inverness-shire ; near 

 Forres, Elgin. Killarney, co. Kerry. 



Form nmscornm Schl. ex Schaer. Enum. (1850) p. 21. Thallus 

 thinner, less roundly lobed, the lobes smaller, narrower. Apothecia 

 small. Cromb. Journ. Bot. 1876, p. 360; Leight. Lich. Fl. ed. 3, 

 p. 105. 



Differs in being considerably smaller in all its parts. The apothecia 

 are also fewer, at least in our British specimens. 



Hob. Among mosses at the roots of old trees in upland districts. 

 Dist.r. Local and scarce in S.W. and N. England, on the S. Grampians, 

 Scotland, and in N.W. Ireland. B. M. : Paington, S. Devon ; near 

 Whitehaven, Cumberland. Glen Lochay, Killin, Perthshire. Kylemore 

 Lake, co. Galwa} r . 



Tribe XVI. PHYSCIEI Nyl. Bull. Soc. Linn. Normand. ser. 2, 

 vii. (1872) p. 322 (cfr. Cromb. Grevillea, v. p. 77). 



Thallus foliaceous or sometimes fruticulose, usually stellato- 

 orbicular; gonidial layer consisting of true gonidia. Apothecia 

 lecanorine ; spores 8nae, subellipsoid or oblong, variously bilocular, 

 or 1-septate, rarely quadrilocular, brown or colourless ; paraphyses 

 discrete. Spermogones innate ; sterigmata usually pluri-articulate ; 

 spermatia cylindrical or oblongo-cylindrical, occasionally obsoletely 

 incrassate at either apex, very rarely acicular. 



Consists of a single genus, formerly included under Parmsliei, but 

 recently separated by Nylander as a distinct tribe. From the less deve- 

 loped thallus aud the type of the apothecia it occupies an interior place 

 in the Series. 



53. PHYSCIA Schreb., Linn. Gen. PI. ed. 8, t. ii. (1791) p. 768 

 Nyl. Syn. i. (1860) p. 406. Thallus horizontally expanded, or some- 

 times ascending, variously lobed or laciniate ; beneath discolorous, 

 very rarely concolorous, more or less fibrilloso-rhizinose ; medullary 

 layer woolly, composed of filaments loosely interwoveu, cortical 

 layer cellular, or with longitudinal cellular cavities. Apothecia 

 sessile or pedicellate, rarely concolorous with the thallus ; hypo- 

 thecium colourless, rarely brownish-black ; hymenial gelatine bluish 

 with iodine. Spermogones generally scattered, becoming at length 



