Mr. Hardy on Lichens of the Eastern Borders. 425 



rocks near the sides of Heathpool Linn. B. On rocks near Oldcambus West 

 Mains ; and on slate at Ewieside. 



7, TRACHONA, Tuyl. Among damp shady rocks. N. Rocks near the side of 

 the Lill-burn ; rocks on Care-burn, and the ravine above Langlee, B. Bocks 

 in the deans in Penmanshiel Wood ; Black Craig, Pease dean, &c. 



S. FUsiFORMis, Leight. On the trunks of trees, near the ground, in shady 

 moist woods. N. On ash on the Lill-burn, on haz?l at Boutin Linn. B. On 

 beech, mountain ash, bird-cherry, ash, holly, and birch, Bed Clues Cleugh, and 

 Penmanshiel Wood ; on hawthorn, Dowlaw dean ; on ash, Betreat. 



2. A. OLIVACEA, Borr. B. On the bark of hazel, Kitchencleugh near Pen- 

 manshiel ; and on hazel and alder, Brockholes dean ; rare. 



3. A. RHYPONTA, Ach. B. On the smooth bark of the branches of young 

 oaks, and also on hazels, Penmanshiel Wood and Bowshiel dean ; on hazel, 

 Dowlaw dean. Lfind that Mr. Mudd's specimens correspond with mine. 



4. A. EPiDERMiDis, Ach. a. fallax, Nyl. On the smooth bark of birch, 

 often without any thallus. B. Penmanshiel Wood, &c. 



3. ANALEPTA, Ach. Common on the smooth bark of oaks, birches, and 

 sometimes also on hazels, and other trees. Sub-var. c. Coryli, Hepp. N. On 

 hazels, Langleyford Hope. B. Penmanshiel Wood, &c. 



y. LACTEA, Ach. On the bark of young sycamores, Penmanshiel Wood. 



5. ciNEREA, Pers. B. On hollies, Penmanshiel Wood, and at the Retreat. 



I. puNCTiFORMis, Ach. On the bark of young oaks. N. Near Heathpool. 

 B. Penmanshiel Wood. 



^. CINEREO-PRUINOSA, Schaev. B. On the smooth bark of ash. Retreat. 

 Sub-var. d, galactites, D. C. On the smooth bark of alder, Penmanshiel Wood. 



J), atomaria, Ach. On the smooth bark of hazels, common. 



5. A. OXYSPORA, Nyl. B. On the white epidermis of the birch, Penmanshiel 

 Wood and Bowshiel dean. 



79. MicrotMia, Koerher. 



1. M. GEMMiFERA, Tiiyl, N. Parasitlc on the thallus of Aspicilia epulotica on 

 blue whin in the College at the entrance to the Henhole ; on the same lichen 

 in Coldgate Water opposite Langleyford Hope ; and I noticed it scattered in 

 small fragments on rock specimens from Cheviot. The apothecla are very 

 minute, and somewhat resemble spermogones. A Microthelia which appears to 

 be this species, or M. pygmosa, occurs on the thallus of Lecidea contigua and 

 other lichens on stone-walls in Bowshiel dean, and near Penmanshiel. It has 

 not yet been submitted to the microscope. 



2. M. VENTosicoLA, Mudd. N. Parasitic in the form of black verrucse on the 

 crust of Hccmatomma ventosum among the rocks on Care-burn. This production 

 is mentioned by Schaerer as a forma " abortiva." Enum. p. 84, who refers to 

 E. B. t. 906, fig. inf. Koerber considers it as a Sphceria. 



ADDENDA. 



I. CoLLEMA FURVUM, Ach. I have mistaken the large specimens of this 

 for SynechoUastus Jlaccidus, and hence all the localities for it, unless it be 

 Winch's, must rank here. 



