276 OF TREES AND PLANTS. 



water-fall, on the north-weft fide j alfo on another large rock on 

 the north-fide, near the top of the bank, plentifully. It covers 

 almoft the whole face of the firft rock eaftward, and is fuftained 

 by a little thin fpongy earth, formed of decayed putrid mofs. 

 The leaves are erect, concave, or -turned inwards at the edges, 

 and laciniated, brown underneath, and of a filvery glofly white 

 above, with a caft of fea-green in the younger plants. The fruc- 

 tifications are on the older ones, in the form of minute brown 

 tubercles, which on a filvery ground form a beautiful variega- 

 tion. It is not in the Flora Angelica. We are referred to the tranf- 

 marine Alps for it by Dillenius. 



35. Purple, tinctorial Lichen or Liverwort, with black fcutellte or 

 diffjes (k). On the fteep rocks under the Roman wall by Crag- 

 lake, towards the weft, end, plentifully ; alfo on a fteep rock at 

 Raven* s-hugh crag. The folioles are implicated, elegantly lacini- 

 ated, and fometimes bifid at the ends, about an inch long, of 

 a dufky purple colour, and blackilh when dry, thick fet with 

 long, rigid, black hairs, in one or two lines underneath, confpi- 

 cuous at, but not growing on, the edges. The fcutellie or fructi- 

 fications are orbicular, and turn inwards. The common peo.Ue 

 in the mountainous parts of Wales, Derbyjhire, and Scotland, ufe it 

 in dying purple, prepared by powdering and urine. The Welch 



(k) Lichen Pulmonarius, tir.&orius, foliis eleganter, & tenuiter divills : inferne nigri- 

 cantibus, & cirrhofis, fuperne purpureis, & lacunatis, receptaculis floruin concoloribus. 

 Michel. Ord. xxii. n. 2. p. 90. t. 49. f. 2. Lichen petrous purpureus DERBIENSIS. Park. 

 Theatr. p. 1315. Raj. Hift. i. p. 116. Mtrr. Pin. p. 72. Lichen cruftae modo faxis ad- 

 nafcens, tindlorius. Town. Inft. p. 549. Lichen nigricans Omphalodcs, EJUSD. ib. Vaill. 

 I?ot. Paris, p. 116. n. 13. t. 20. f. 10. Lichen imbricatus, foliolis multifidis glabris obtu- 

 fis canis, punftis vagis eminentibus. Linn. Flo. Suec. n. 947. Sp. PI. p. 1143. Lichc- 

 noides faxatile tinftorium, foliis pilofis purporeis. Raj. Syn. iii. p. 74. n. 70. DHL Hift. 

 Mufc. p. 185. t. 24. f. 80. 



call 



