90 CYCLOCARPINEE [PSOROMA 
8-11 » thick; hymenial gelatine bluish then wine-red with 
iodine.—Cromb. Lich. Brit. p. 44 (incl. var. deaurata) ; Leight. 
Lich. Fl. p. 163; ed. 3, p. 149; £. deawrata’ Nyl. Lich. Scand. 
p. 121 (1861); Cromb. Monogr. i. p. 350. Lichen hypnorum 
Dicks. Fl. Crypt. fase. iii. p. 14 (1793) (excl. syn.) ; With. 
Arr. ed. 3, iv. p. 22; Engl. Bot. t. 740. Lecanora hypnorum 
Ach. Lich. Univ. p. 417 (1810) ; Hook. Fl. Scot. ii. p. 51 ; Grev. 
Fl. Edin. p. 334 ; Tayl. in Mackay Fl. Hib. ii. p. 139. L. lepidora 
var. deaurata Ach. tom. cit. p. 418. Squamaria hypnorum Hook. 
in Sm. Engl. Fl. v. p. 194 (1833). Pannaria hypnorum Koerb. 
Syst. Lich. Germ. p. 108 (1855) ; Mudd Man. p. 124. 
Exsicc. Cromb. n. 58 pro parte ; Larb. Cesar. n. 70. 
The squamules are either scattered or crowded, sometimes 
extremely prominent on the margin of the apothecium. Form 
deaurata does not differ except in the slightly brighter colour. 
Hab. Among mosses on the ground, rocks and walls in maritime 
and inland districts.—Dzstr. Not infrequent in the Channel Islands 
and in Great Britain, not recorded in Ireland.—B. M. Grosnez, 
Jersey; Guernsey; Tresco, Scilly Islands; Respring, Cornwall; 
Dartmoor, Devon ; Shoreham Beach and Aldington Beach, Sussex; 
Hale’s End, near Malvern, Worcestershire; Cym Bychan and 
Aberdovey, Merioneth; Egglestone, Durham; the Cheviots, North- 
umberland; Pentland Hills near Edinburgh; Hills above Greenock, 
Renfrewshire ; Appin, Argyll; Killin, Craig Calliach, Falls of Bruar, 
Glen Lochay, Ben Lawers and Glen Fender, Perthshire; Clova, 
Reeky Linn, Kinnordy, Esk Burn and near Dundee, Forfarshire ; 
Corriemulzie, Falls of Garrawalt and Craig Cluny, Braemar, Aber- 
deenshire, Glen Nevis, Invernessshire; Glen Dale, I. of Skye. 
Orper VIII. PELTIGERACEA. 
Thallus foliaceous, membranaceous, heteromerous, the upper 
cortex of plectenchyma, lower surface non-eorticate, or partly 
corticate, provided with loose hyphe or with rhizoids. Algal 
cells blue-green (Nostoc) or bright-green (Dactylococcus). Apothecia 
mostly marginal and roundish, adnate on the upper or lower 
surface of the thallus, without a thalline margin; hypothecium 
colourless ; paraphyses stoutish, simple, septate ; spores 2-8 in 
the ascus, elongate, fusiform or ellipsoid, l- or more- septate, 
colourless or dark-coloured. Spermogones absent or rare. Cepha- 
lodia enclosing Nostoc present in some of the genera. The following 
are British :— 
Apothecia marginal, superficial. 
On upper surface of the thallus ............... 32. Peltigera. 
On lower surface of the thallus.................. 33. Nephromium. 
Apothecia scattered, sunk in the thallus. ......... 34. Solorina, 
32. PELTIGERA Willd. Fl. Berol. p. 347 (1787). Peltidea 
Ach. Meth. Lich. p. 282 (1803); Cromb. Monogr. i. p. 277. 
(Pl. 32.) 
Ay 
