288 LICHKNACEI. [PELTIGERA. 



ash-coloured upper surface, and its whitish under surface with long white 

 rhizinse. The lobes are of moderate size, though many usually compose 

 an individual plant, which then spreads extensively. It is common in 

 fruit, especially with younger apothecia, nor do these attain any great 

 size in age. On the margins of the lobes pycnides are occasionally seen. 

 These are tubercular, brownish-black, the conceptacle colourless beneath; 

 stylospores oblong, 0.009-0,012 mm. long, 0,004-5 mm. thick (vide Nyl. 

 Syn. i. t. 1. f. 27).' 



Hob. Among mosses on the ground, the tops of old walls, on boulders 

 and about the roots of trees in lowland and upland situations. Distr. 

 General and common throughout Great Britain, and probably Ireland ; 

 rare in the Channel Islands. B. M. : Island of Guernsey. Epping Forest, 

 Essex; New Forest, Hants; near Penzance and Withiel, Cornwall; 

 Madingley, Cambridgeshire ; Wychwood Forest, Oxfordshire ; Glee Hills, 

 Shropshire; near Dolgelly, Merionethshire; Snowdon, Carnarvonshire; 

 Cleveland, Yorkshire ; Teesdale, Durham ; The Cheviots, Northumber- 

 land. New Galloway, Kirkcudbrightshire ; Barcaldine, Argyleshire ; 

 Glen Lochay and Blair Athole, Perthshire ; Durris, Kincardineshire ; 

 Countesswells and Castleton of Braemar, Aberdeenshire ; near Forres, 

 Elginshire ; Glen Nevis, Inverness-shire ; Applecross, Ross-shire. Near 

 Belfast, co. Antrim ; Killarney, co. Kerry. 



Var. /3. membranacea Nyl. Syn. i. (1860) p. 324. Thallus 

 thinner, more glabrous (subtomentellose), roundly lobed, the fertile 

 lobes short. Apothecia small. Cromb. Lich. Brit. p. 29 ; Leight. 

 Lich. Fl. p. 108. Peltidea canina y. membranacea Ach. Lich. Univ. 

 (1810) p. 518. Brit. Exs. : Larb. Lich. Hb. n. 45. 



Distinguished by the thallus and apothecia, the characters of which, 

 according to Nylander in Hit., entitle it probably to rank as a subspecies 

 (cfr. Z\v. Lich. Heidel. p. 20). It is not frequent in fruit, and even 

 when present the apothecia are but few. 



Hub. Among mosses on the ground in shady places in maritime, low- 

 land, and upland districts. Distr. Not very general, though common 

 where it occurs in Great Britain, and perhaps also in Ireland. B. M. : 

 Near Penzauce, Cornwall ; Hyde Park, London (olirn) ; Barmouth, 

 Merionethshire ; near Conway, Carnarvonshire ; Island of Anglesea ; 

 Patterda^, Cumberland. Barcaldine, Argyleshire ; Killin and Blair 

 Athole, Perthshire : Strathmartin, Forfarshire ; Corriemulzie, Braemar, 

 Aberdeenshire. Rostellan, co. Cork ; Kylemore, Connemara, co. Galway. 



3. P. mfesceus Hoffm. Deutsch. Fl. ii. (1795) p. 107. Thallus 

 moderate, somewhat thickish, subtomentellose, roundly lobed, crisp, 

 greenish- or greyish-brown when moist, pale, pale-cervine or 

 greyish-red when dry ; beneath with thick coarse dark or brownish 

 nerves and few rhizinae. Apothecia moderate, rotundato-oblong, at 

 length revolute, red or brownish-red, the margin denticulate ; spores 

 elongato-fusiform, 3-5-septate, 0,042-72 mm. long, 0,004-5 mm. 

 thick. Cromb. Lich. Brit. p. 29; Leight. Lich. Fl. p. 108, ed. 3, 

 p. 102. Peltigera canina (3. rufescens Mudd, Man. p. 82. Ptltidea 

 rufescens Hook. Fl. Scot. ii. p. 60 ; Sm. Eng. Fl. v. p. 216. Lichen 

 rufescens Eng. Bot. t. 2300 ; With. Arr. ed. 3, iv. p. 405 ; Liclten 

 rufus (errore) p. 70. Lichen canimts (3. rufescens Lightf. Fl. Scot, 

 ii. (1777) p. 846 ; Huds. Fl. Angl. ed. 2, p. 547. Peltirfm crujm 



