. 
102 CYCLOCARPINEE [NEPHROMIUM 
Though sometimes given specific rank, evidently only a sorediate 
though well-marked variety of N. levigatwm. Bitter (Jahrb. Wiss. 
Bot. xxxvi. p. 454 (1901) ) has recorded the occurrence of both species 
and variety in close proximity; the former on the branches of a tree 
bore apothecia and no soredia, while var. parile, abundantly sorediate, 
grew in a more damp situation among moss and grass on the ground. 
The soredia are mostly marginal, though sometimes scattered over 
the surface. They become dark in colour in older plants. None of 
the British specimens are fertile. 
Hab. On mossy rocks and boulders and about the roots of old 
trees in wooded districts.— Distr. Rather rare in S. and W. England, 
Scotland and Ireland.—B. M. Ivy Bridge, Hennock, Bovey Tracey, 
Totnes, and near Devonport, Devon; Cound Moor and near Oswestry, 
Shropshire; Dolgelly and Twll Du, Merioneth ; Windermere, West- 
moreland; Braithwaite, Cumberland; Pentland Hills, near Edinburgh; 
Barcaldine, Argyll; Craig Cailliach, Glen Lochay and Pass of Killie- 
crankie, Perthshire; Craig Cluny, Braemar, Aberdeenshire ; Caledonian 
Canal, Invernessshire ; near Dunkerron, Kerry. 
3. N. lusitanicum Nyl. in Flora lili. p. 38 (1870).—Thallus 
suborbicular, lobate, smooth and somewhat shining, the lobes 
rounded, crenate, crisp or undulate at the margins, chestnut- or 
dark-brown, beneath glabrous, somewhat wrinkled, pale (medulla 
yellow, K + purplish). Apothecia varying in size up to 1 em, 
across, sometimes confluent, reddish-brown, incurved, sometimes 
crenate at the edges, somewhat depressed and minutely areolate 
at the back’; spores 20-24 p long, 6-7 p» thick.—Leight. in Ann. 
Mag. Nat. Hist. ser. 4, v. p. 41 (1870) & Lich. Fl. p. 106; ed. 3, 
p. 100. N. levigatum f. lusitanicum Cromb. Lich. Brit. p. 28 
(1870). Iichen resupinatus Sm. Engl. Bot, t. 305 (1796) (mon 
L.); var. 2 With. Arr. ed. 3, iv. p. 71 (1796). Nephroma 
lusitanicum Scher. Enum. p. 323 (1850). 
Exsicc. Croall n. 99; Dicks. Hort. Sicc.Wase. xvi. n. 23; 
Johns. n. 226; Lard. Lich. Hb. n. 288 ; Leight. n. 23. 
Distinguished from other species by the smoother, more shining 
surface and by the usually yellow medulla. 
Hab. On the trunks of old trees, and on mossy rocks and boulders 
in wooded districts.—Dzst. General and not uncommon throughout 
the British Isles.—B. M. Islands of Bréchon and Guernsey; Scilly 
Islands ; near Respring, Penzance, Liskeard and St. Austell, Cornwall ; 
Okehampton, Torquay, Lustleigh Cleeve and near Totnes, Devon; 
New Forest, Hants ; Eridge Rocks, Pett Beach and Ardingly, Sussex ; 
Romney Marsh and Lydd, Kent; Hatfield Forest, Essex; Malvern, 
Worcestershire ; near Oswestry, Shropshire; Barmouth, Dolgelly and 
Aberdovey, Merioneth; Capel Curig and Bettws-y-Coed, Carnarvon- 
shire; Baysdale, Cleveland, Yorkshire; Egglestone, Durham; Mar- 
dale, Westmoreland; Keswick and Bassenthwaite Lake, Cumberland; 
New Galloway, Kirkeudbrightshire; near Moffat, Dumfriesshire ; 
Dumbarton Castle, Dumbartonshire ; Barcaldine, Inverary and Head 
of Loch Awe, Argyll; The Trossachs, Glen Lochay and Pass of Leny, 
Perthshire; Reeky Linn, Forfarshire; near Beirn, Kincardineshire ; 
Craig Coinnoch and Craig Cluny, Braemar, Aberdeenshire ; Cawdor 
