Rev. T. Salwey's List of Lichens in Wales. 25 



The species in which these branchise exist in the perfect state are 

 Pteronarcys regalis, P. hiloha, P. proteus, and also in an uncle- 

 scribed species brought by Mr. Doubleday from New York, and 

 now in the same collection. 



V. — A List of Lichens gathei-ed in different paints of Wales, prin- 

 cipally in the neighbourhood of Barmouth, ivith a few casual ob- 

 servations upon some of the species. By the Rev. T. Salwey. 



The species common everywhere are omitted, unless marked by 

 some peculiarity of growth. All the habitats, except where it is 

 otherwise specified, are in the neighbourhood of Barmouth. 



Bceomj/ces roseus. Hill above the half-way-house between Barmouth 



and Dolgelley. 

 rtifus. Walls and rocks. I have gathered this so finely 



developed upon decayed turf as to look like a different plant. 



■ placophyllus. Rocks above Corwen : this habitat was first 



pointed out to me by Mr. Borrer ; top of Snowdon, and in fruit at 

 the top of Cader Idris, Mr. Ralfs. 



anomalus. On rocks at Crafnant near Llanbedr, and above 



Gwastad-annos ; on a rock below the Tannery, Mr. Ralfs. 



Calicmm . I have only met hitherto with a few of the common spe- 

 cies of this genus in Wales. 



Opegrapha saxatilis. Not uncommon on mortar and hard sandstone : 

 on an old building at Llanaber by the side of the turnpike-road. 



dendritica. On old trees at Cors-y-gedol. Two or three 



curious varieties of this occur upon trees at Holyland near Pem- 

 broke. 



Verrucaria leucocephala. On old oaks at Wyunstay. 



lavata. In the stream at Cors-y-gedol and below Cwm 



Bychan. 



maura. Upon stones on the shore at Barmouth, jjrinci- 



pally on the south side of the ferry, and on rocks upon the 



Mowddach. 



crysiboda. Arddog. 



viridula. On a rock below the Tannery, Mr. Ralfs. 



muralis. On old mortar. Pont Ysgethin, Pont Fadog, &c. 



Endocarpon miniatum, with its varieties : common. 



leptophyllum. Llyn Bodlyn, Llyn Howel, &c. 



pulchellum. Common : Ty Gwyn, &c. 



IcBte-virens. Common on the tops of the hills. 



smaragdidum. Common on walls ; on the wall near the 



third milestone on Dolgelley-road, and above Aber-Artro. 



sinopicum. Abundant in several places on the rocks by 



the side of the turnpike-road between Barmouth and Dolgelley ; 

 Bod Owen, Borthwnog, &c. 

 Pertusaria ceuthocarpa. Rocks and walls : above the Harlech turn- 

 pike at Barmouth. 



