Mr. Hardy on Lichens of the Eastern Borders. 405 



for the most part white ; the disc of the apothecia concolorous with the thallus. 

 This seems allied to Koerber's var. compactum. Syst. Lich. Germ. p. 115. B. 

 On rocks on the Whitadder at the Retreat ; wall near Siccar point. 



28. Placodimn, De Cand, 



1. p. MURDRUM, Hoffm. Old walls of houses, &c. ; and common on rocks 

 along all the sea-coast, N. and B. 



2. P. CALLOPisMUM, Acli. B. On sandstone rocks at Greenheugh point. 



3. P. c.VNDiCANS, Dicks. N. On indurated limestone at Ratcheugh, with 

 apothecia. 



29. Callopisma, De Notaris. 



1. C. VITELLINUM, Ehrh. On rocks, walls, and old pales, frequent. 



2. C. CERiNUM, Hedw. (3, chlouinum, Fw. Rare. N. On rocks near the 

 Heather houses. B. On stones in the burn, near the lower part of Dowlaw 

 dean, *. N. On an ash tree on the Lill-burn. 



3. C. AURA.NTIACUM, Liglitf. a.. Salicinum, Schrad. N. On the trunk of old 

 ash-trees at Spindleston-heugh, and Wooler Haugh-head. B. On the bark of 

 an old ash tree at Piperton near Highchesters. 



|3. FLAVo-viRESCENS, Hqffhi. N. On sandstone, Whitsunbank hill. 



7, INALPINUM, Schleich. B. Not uncommon on stone-walls, and sometimes 

 on gates ; Penmanshiel ; Whare-burn, &c. Lecidea erythrella, Hook. Brit. 

 Fl. ii. p. 186. 



4. C. FERRUGiNEUM, Huds. On rocks, and sometimes on the bark of trees. 

 D. On the bridge at Hudshead. N. Spindleston-heugh, foot of Horsden, "Wooler, 

 north base of Yeavering Bell, below Heathpool Linn, Routin Linn ; on the 

 bark of mountain ash above Harthope Linn, at the foot of Cheviot. B. Scat- 

 tered along the Berwickshire coast; below " the Deil's Dander," Coldingham, 

 Lumsden shore, Dowlaw dean, near St. Helen's Church, Ewe-lairs, and in 

 various inland localities. 



30. Lecania, Massal. 



1. L. ERYSiBE, Ach. a. B. On a stone of claystone porphyry, and on mortar, 

 at the base of a cattle fold, " Lady's Folly," Penmanshiel (765 feet high by the 

 Ordnance Survey) ; also in the fissures of slaty rocks at the Swallow Craig, 

 near Siccar-point. The species was determined by Mr. Mudd. 



y. ATPOSPILA, ^orr. "Rocks at Bamburgh, and Staples' islands, on the 

 coast of Northumberland." Mr. William Robertson. (Hook. Brit. Fl. ii. p. 188.) 

 " On basaltic rocks at Holy Island." WiitcJi. I have twice examined the pre- 

 cincts of Bamborough Castle for this, without success. No one seems to know 

 what Lecanora spodophaea is, for which the same localities are given. " To 

 me," says Mr. "Winch, " this appears to be only a variety of the preceding." 

 Flora of Northumb. p. 87. 



31. Einodina, Ach. 



1. R. EXiGUA, Ach. Small fragments have occurred on gate-posts at Pen- 

 manshiel, which Dr. Lindsay considered to be R. sopJiodes, I suppose of Leigh- 

 ton's Lich. Brit. Exs. ; more common on stones, &c., about buildings. N. On 

 some of the walls, and on rocks, Bamborough Castle. B. Tiles, and on walls 

 of a cattle-fold, Penmanshiel ; Cockburnspath Tower Castle. The thallus 



