PELTIGERA | PELTIGERACEA 93 
Resembles the preceding in the colourless under-surface but is 
much smaller, sometimes resembling P. venosa in form. 
Hab. On the ground among mosses and short grass, also on 
the stumps of trees in maritime and upland districts.—Dzistr. Rather 
rare in 8.W. and N. England, N. Wales, and among the Grampians, 
Scotland.—B. M. Totnes, Devon; near Ryde, Shanklin and Ventnor, 
I. of Wight; Sussex Downs, near Brighton, Hurstpierpoint and Hay- 
wards Heath, Sussex; Ightham, Kent; Epping Forest and Ulting, 
Essex; near Cirencester, Gloucestershire; Sotterley, Suffolk; Gog- 
magog Hills, Cambridgeshire ; Oswestry and Church Stretton, Shrop- 
shire; Yusfaig, N. Wales ; Ingleby, Cleveland, Yorkshire ; Streatlam, 
Durham; Appin, Argyll; The Trossachs and Falls of Tummel, Perth- 
shire; Durris, Kincardineshire. 
3. P. rufescens Hoffm. Deutschl. Fl. p. 107 (1795).—Thallus 
spreading, horizontal, rather thickish, downy above, roundly 
lobed, often crisp at the edges, greenish- or greyish-brown when 
moist, light-brown or greyish-red when dry, beneath with thick 
brownish or dark nerves and scattered dark rhizine. Apothecia 
moderate in size, roundish or somewhat oblong, red or brownish- 
red, the margin denticulate ; spores 3—5-septate, 42-72 » long, 
4-5 p thick.—Cromb. Lich. Brit. p. 29; Leight. Lich. Fl. 
p- 108; ed. 3, p. 102. P. canina var. rufescens Mudd Man. 
p. 82 (1861). Lichenoides peltatum terrestre rufescens Dill. in 
Ray Syn. ed. 3, p. 77, n, 88 (1724). Lichenoides digitatum 
rufescens, foliis Lactuce crispis Dill. Hist. Muse. p. 203, t. 27, 
tig. 103 (1741). Lichen caninus var. rufescens Weiss Pl. Crypt. 
Gott. p. 79 (1770); Lightf. Fl. Scot. i. p. 846. L. rufescens 
Neck. Meth. Muse. p. 79 (1771); With. Arr. ed. 3, iv. p. 405 
(L. rufus errore p. 70); Engl. Bot. t. 2300. Peltidea rufescens 
Ach. Meth. Lich. p. 285 (1803); Hook. in Sm. Engl. FI. v. 
p. 216 (1833). P. canina var. crispa Ach. Lich. Univ. p. 519 
(1810); var. rufescens Hook. FI. Scot. ii. p. 60 (1821). P. erispa 
S. F. Gray Nat. Arr. i. p. 428 (1821). 
Ezsice. Bohl. n. 87 ; Cromb. n. 43; Johns. n. 227. 
Closely allied to P. canina, intermediate stages occurring between 
the two species, but in general it is more reddish in colour, and the 
margin of the lobes are crisper. It differs also in habitat. 
Hab. Among mosses on shady rocks, and the stumps of trees in 
maritime and mountainous districts.—Distr. Rather rare throughout 
the British Isles —B. M. Guernsey; Penzance, Cornwall; Totnes, 
Devon; Cirencester, Gloucestershire ; Gopsall, Leicestershire ; Hafod, 
Cardiganshire ; near Kendal, Westmoreland; New Galloway, Kirk- 
cudbrightshire; Airds, Appin, Argyll; Achmore, Killin, Perthshire ; 
near Fort William, Invernessshire ; Rosscarbery, Cork; Clare Island, 
Mayo. 
Var. pretextata Nyl. Syn. Lich. i. p. 325 (1860).—Varies in 
the isidiiferous or minutely squamulose margins of the thalline 
lobes.—Form pretextata Cromb. in Journ. Linn. Soc. xvii. p. 574 
(1880) & Monogr. i. p. 289. P. canina var. linbata Mudd Man. 
