290 LICHKNACEI. [PELTIGEKA. 



septate, 0,056-75 mm. long, 0,0035-45 mm. thick. — Leight. Lich. 

 Fl. ed. 3, p. 103 : Cromb. Linu. Soc. Journ. Bot. xvii. p. 574. — 

 Peltigera rufcscens subsp. spuria Cromb. Lich. Brit. p. 29. Peltldea 

 spuria Sra. Eng. Fl. v. p. 215. Lichen spurius Ach. Prodr. (1798) 

 p. 159 ; Eng. Bot. t. 1542. Pelii>/era canina e. pusilla Koerb., 

 Mudd, Man. p. 83. Lichenoides digiUitum cinereum, Latucce foliis 

 sinuosis BUI. Muse. 200, t. 27. f. 102 a-d. 



Differs from the preceding in the small digitately lohed thallus, the 

 paler nerves, the smaller apothecia, and the longer spores. It so resembles 

 I\ 2)uhjdartyla that it might readily be confounded with some of the 

 states of that species. The thallus, which is sometimes pruinose, often 

 grows in a scattered manner ; the apothecia are numerous, nearly all the 

 lobes being fertile. 



Hab. On the gi-ound among mosses and short grass, as also on the 

 stumps of felled trees in maritime and upland districts. — Distr. Some- 

 what local in S., W., and N. England, X. "Wales, on the Grampians, 

 Scotland ; not yet observed in Ireland. — B. M. : Sotterley, Suflblk ; 

 Epping Forest, Essex ; Ightham, Kent ; near Eyde and Shanklin, Isle of 

 Wight; the Sussex Downs and Hnrstpiei-point, Sussex; Totnes, S. 

 Devon ; near Cirencester, Gloucestershire ; Gogmagog Hills, Cambridge- 

 shire ; near Bicester, Oxfordshire ; Charnwood Forest, Leicestershire ; 

 Oswestiy and Church Stretton, Shropshire ; Ayton Moor, Cleveland, 

 Yorkshire ; Ynysfaig, X. Wales. Appin, Argyleshire ; The Trossachs 

 and Falls of Tummel, Perthshire ; Durris, Kincardiueshii'e ; Corriemulzie, 

 Braemar, Aberdeenshire. 



5. P. scabrosa Fr. fil. X. Act. Ptcg. Soc. So. Upsal. ser. 3, t. iii. 

 (IbGl) p. 145. — Thallus moderate, subcoriaceous, very finely and 

 minutely scabrid, roundly lobed, opaque, pale-lurid or greyish-pale, 

 beneath whitish, subreticulate, with pale, nearly confluent nerves, 

 blackish in the centre. Apothecia moderate, subrotundate, at 

 length revolute, brownish-red or dark-chestnut, the margin sul> 

 crenulate; spores 0,008-80 mm. long (or even longer), 0,004- 

 0,0u5 mm. thick. — Cromb. Jouru. Bot. 1885, p. 195. 



A distinct species allied to P. rufescens, but difiers in the minutely 

 scabrous not tomentellose thallus, and in the more elongate spores. 

 From P. scidata it is distinguished not only by the larger thallus and 

 apothecia and the foi-m of the lobes, but also by the almost verrucose 

 epithallus, and the more septately divided spores. It is a plant of a 

 boreal type, and is fertile oul}- in subarctic regions. 



Hab. On turf-covered walls in a mountainous region. — Distr. Extremely 

 local aud scarce on the X. Grampians, Scotland. — B. M. : Between Cor- 

 riemulzie and Inverey, Eraemar, Aberdeenshire. 



6. P. polydactyla HofFm. Deutsch. Fl. ii. (1795) p. 106.— 

 Thallus thinnish, digitato-lobed, ascending or suberect, glabrous 

 and shining, smooth or obsoletely impresso-uncqual. glaucoi;s-greea 

 when moist, livid- or pale-glaucous or pale-brown' when dry, beneath 

 nearly glabrous, whitish or white, reticulate with coarse blackish- 

 brown nerves, which are palc-ieddish towards the circumference. 

 Apothecia smaD, lougitudinal, brown or reddish-brown, the margin 



