Mr. Hardy on Lichens of the Eastern Borders. 413 



On old tree trunks at Spindleston-heugh. It is most abundant in spring, and 

 almost disappears during the summer. 



5. L. VIRIDESCENS, ScJirad. 3. gelatinosa, Flk. N. Rare. On damp 

 earth at the side of Coldgate burn, above Langleyford Hope, one example only ; 

 and again on soil on the Lill-burn, near where the rivulet from North Middleton 

 Shepherd's House, joins it. B. Near the Black Craig, Pease dean. 



6. L. DECOLORANS, Hoffm. Moors and earth on wall-tops in moorland situa- 

 tions, plentiful, N. and B. 



7. viRiDULA, Mudd. N. On earth on a wall top behind the Sneer hill. 



7. L. ULIGINOSA, Schrad. On damp, generally peaty soil, and sod coped 

 dikes, in moorland localities. N. Cheviot and Hedgehope ; Whitsunbank hill, 

 Sneer hill. Ford hill, &c. B. Coldingham moor; Bowshiel dean, on wall-tops; 

 on Laughing Law near Monynut, &c. 



8. L. RivuLOSA, Ach. Rocks by water sides, and in shady deans, and also 

 among exposed mountain rocks, common, N. and B. Very variable in its aspect. 

 The rocks that wall our dark deep cleughs are often painted with its fuscous 

 hues, variegated by the map -like lines of its hypothallus. A dark state of the 

 plant in Dowlaw dean, shews a red fracture when the stone on which it grows is 

 broken. It ascends to the summit of Cheviot where some remarkable forms 

 occur. 



^. KocHiANA, Hepp. N. Langleyford Hope and Hedgehope. The thallus in 

 these instances is of a white colour. 



9. L. ARCTICA, Sommf. N. On mosses and peat among the boulders near the 

 summits of Cheviot and Hedgehope, and confined to that elevation. This is a 

 native of the highest Alps and of the Arctic regions. 



10. L. PARASEMA, Ach. On the bark of trees, common ; also mixed with 

 Lecanora varia on paling and old gates ; this form being Lecidea scdbrosa of 

 Leighton's Lich. Brit. Exs. The rarest var. is 5. saxicola, Leight. This I 

 have found, but not in a good state, on a shady rock in Harelawside dean. 



11. L. TURGIDULA, Fries. B. Rare. On scales of the bark of the Scotch 

 pine at the Retreat, 



12. L. coMiops, Wahlh. On rocks, mostly in damp shady localities. N. 

 Spindleston-heugh ; on trap. House of Craig ; on porphyry on the summit of 

 Hedgehope ; and on boulders imbedded in peaty soil, on the western side of the 

 Care-burn. B. Occasionally on stone-walls at Penmanshiel. "When the apo- 

 thecia are moistened most of them become brown ; and when young they are 

 greenish grey, or livid, with a paler margin. 



13. L. GONIOPHILA, Flk. N. On a piece of limestone in the wall of Whitsun- 

 bank hill. B. On the shady side of stone- walls at Penmanshiel. 



(3. ACERVATA, Mudd. B. On stone-walls at Penmanshiel, apparently more 

 common than var. a. These exactly correspond with Mr. Mudd's specimens in 

 Mr. Baker's Herbarium ! 



Some lichenists have considered this as a variety of L. calcivora, but I see no 

 obvious resemblance. The var. might more easily be confounded with states of 

 L, protrusa, amidst which it grows. 



14. L. ATRo-SANGUiNEA, Hoffni. B. On greywacke slate in Blackburn-rigg 

 dean, and in the deans in Penmanshiel Wood, in shady situations. This closely 



