396 



The Lichen Flora of the Eastern Borders. By James 

 Hardy, 



"DifRcile quidem, ac periculosura est hujus generis plantas exacte distribuere; turn quod 

 raro admodum inveniuntur omnino perfectse, flore scilicet, semineque ornatae ; turn quod 

 ex iis aliquEB sint adeo parvae, ut neque microscopic inspects structure earum ne dum flores 

 deprehendi queant."— Micheli, Nov. Plantarum Genera, p. 73, 74. 



1. LicMna, Ag. 



1. L. PYGM^A, Lightf. On rocks about high-water mark, common. 



2. L. coNFiNis, Ach. On rocks at and above high-water mark, common. 



2. Epliel3e, Fries. 

 1. E. PUBESCENS, Ach. In chinks of rocks in damp shady places. N. " On 

 Cheviot." Bot. G. North, ii. p. 63, B. In a very dwarf state at Lowrey's 

 Knowes, near Dowlaw, and rocks on the Whitadder, below Edin's Hold. 



3. Callema, Hoffm. 



1. C. FURVUM, Ach. B. Rare ; a few dwarf rosettes attached to greywacke 

 rocks by the side of the burn in the lower part of Dowlaw dean. In Silesia 

 Koerber found it on greywacke as well as on calcareous rocks. It resembles a 

 diminutive state of SynechoUastus Jlaccidus. 



2. C. PULPOSUM, Bernh. Clayey soil, especially on the sea-banks ; also 

 among rocks, and on old buildings. N. Bamborough Castle, Eatcheugh, Hum- 

 bleton dean,"Routin Linn. D. Hudshead, B. Berwick, and along the whole 

 Berwickshire coast ; Railway banks ; Langton "Wood ; Greenlaw, &c. 



7. LiMosuM, Ach. B. Sea-coast at Eastern Hole, near Cockburnspath Cove. 



S. CRisTATUM, Borr. Common, on the sea-banks. The specimen marked 

 Collema nigrnm, in Dr. Johnston's Herbarium, belongs to C. pulposum. C. 

 nigrum, Ber. Flor. ii. p. 78. 



3. C. CRispuM, Borr. B. Rare. Among soil mixed with lime on a stone 

 wall near Greenheugh. The specimens are fully as characteristic as a Sussex 

 example from Mr. Unwin. 



4. C. FLUVIATILE, Huds. B. Rare. On rocks constantly moistened by water, 

 and at times quite immersed, in the bed of the Whitadder, above and below the 

 Retreat, bearing apothecia. 



4. Syiiecliol)lastiis, Trevis, 



1. S. FLACCIDUS, Ach. On rocks in streams and by the sides of waterfalls. 

 N. " On rocks in Wooler water, above Langleyford." Winch. I have found it 

 there and on the Lill-burn. B. "Whitadder ; Pease bridge ; Cockburnspath 

 Tower dean ; Dowlaw dean, &c. 



2. S. NiGRESCENS, L. On trees, Langton LeesCleugh. Rev. Thomas Brown. 

 The specimens are in Dr. Johnston's Herbarium. 



5. Mallotium, Fw. 



1. M. SATTJRNiNUM, Z)icA:5. N. " On stones above Langleyford at the foot 

 of Cheviot." Winch. This I have not yet found. 



