422 Mr. Hardy on Lichens of the Eastern Borders. 



ii., p. 158. B. On Jiingermannia dilatata, 'Q\a.ck Craig, Pease dean ; and Dow- 

 law dean, below the linn ; very rare. As to the nature of this plant, Koerher 

 cannot form an opinion. Tulasne thought it a young state of Placodium 

 plmnbeum, and the supposed fruit a parasitic fungus. 



2, N. viRiDis, Ach. N. On Sphagnum and other decaying moss plots, and 

 on moist peaty soil, on the ascent of Cheviot, somewhat ahove where the Cloud- 

 berry commences ; also in the moss on the top of Hedgehope. I also gathered it 

 in a boggy spot near Ford hill. There are some interesting remarks on this 

 species by the Rev. Hugh Macmillan, in Edin. Phil. Journal, April 1856, p. 261, 

 262. I cannot, however, with Fries, regard it as a degenerate Cladonia; for in 

 these localities the cup-mosses preserve their characteristic forms. 



67. Pertiisaria, D. C. 



1. p. RUPESTRis, Z). C 3. AREOLATA, ^c/j. B. On the cdges of slate rocks 

 in Witchy Cleugh, and scattered about the base of stone-walls at Penmanshiel. 

 The sorediated variety has a taste as bitter as Variolaria faginea. 



2. P. SYNCARPA, Mudd. N. On sandstone on Whitsunbank hill, Wooler, with 

 fertile verrucas. This differs in no respects from Mr. Mudd's specimens ! 



y. CORALLINA, L. On rocks and stone-walls in mountainous districts, common. 

 N. and B. Isidium corallinum, Hook. B. F, ii., p. 231. 



3. P. GLOBULiFERA, Smith. B. On beech in Penmanshiel Wood, fertile. 



3. MULTiPUNCTATA, Turn. On the branches of old holly, Penmanshiel Wood, 

 fertile. 



y. SOREDIATA, Fries. Variolaria discoidea, and V. faginea, Hook. B. F. ii. 

 p. 169. On the bark of beech, birch, alder, oak, and other trees, very common. 

 I follow Mr. Mudd in the arrangement of var. y., for the same reason why he has 

 adopted it. I find on beech along with V. faginea, a Pertusaria in perfect fruit, 

 ■which agrees with P. glohuRfera ; and again on holly another, P, multipiinctata, 

 on branches of holly, connected with an immense profusion of the sorediated form. 

 But I also believe that P. communis has its sorediated state, as any one may see 

 ■who examines it while growing. 



4. P. COMMUNIS, D. C. Trunks of old trees, frequent. 



6. P. PUSTULATA, ylc/i. Po?-JHa fcioj»?aca, Johnst. Ber. Flor. Ii., p. 103. On the 

 smooth bark of the trunks of young oaks, ashes, &c. N. On oak at Spindleston, 

 and on the College water. B. On oak in Penmanshiel Wood, hazel at Dowlaw 

 dean, young ashes at Retreat, &c. 



6, P. FALLAX, Pers. B. On the trunks of old oaks, Red Clues Cleugh. ; very 

 rare. 



68. TMotrema, Ach.. 



1, T. LEPADINUM, Ach. On the trunks of old trees in shady deans in -woods, 

 not very common. N. On the bark of mountain ash above Harthope Linn, at 

 the foot of Cheviot, and also below Langleyford Hope. B. On holly, hazel, birch, 

 and oak, Penmanshiel Wood and Red Clues Cleugh; on oak, Pease dean; on 

 birch and oak. Kitchen Cleugh ; on oak, Blackburn-rigg Wood ; on oak, Bow- 

 shiel dean, and on Ewieside. 



69. PetractiS, Fries. 



1. p. EXANTHEMATicA, Sm. B. On ted sandstone at Greenheugh point, and 



