CELLULOSE. LICHENACE^E. 99 



326. L. ferruffinea, Hook. Rusty shielded Lecidea. Rathpeacon, 

 and on rocks and trees. very common. 



327. L. lutea, Borr. Yellowshielded Lecidea. Bantry : Miss 

 Hutchins. very rare. 



328. L. ulmicola, Borr. White and Yellow Lecidea. On limestone 

 rocks about Cork : Mr. Alexander. rather rare. 



329. L. aurantiaca, Ach. Saffron Lecidea. Near Bantry: Miss 

 Hutchins. Great Island . Dr. Scott. rather rare. 



445. LECANORA, Ach. LECANORA. 



330. L. atra, Ach. BlacJcshielded Lecanora. Rocks at Passage ; 

 Great Island ; and by the sea. common. 



331. L. exigua, Hook. Diminutive Lecanora. On a wall in Bal- 

 lyphehane bog : Mr. Alexander. August 1839. rather rare. 



332. milvina, Ach. Widespreading Lecanora. On grey flinty slate 

 rocks near Bantry : Miss Hutchins. rare. 



333. L. subfusca, Ach. Brownshielded Lecanora. Great Island : 

 Dr. Scott. Rocks near Cork : Mr. Alexander. Ahern : Miss Ball. 

 Widely distributed throughout the county. rather rare. 



334. L. varia, Ach. Variable Lecanora. Rocks near Ballinhassig, 

 and near Ardrum : Mr. Alexander. rather rare. 



335. L. parella, Ach. Crabseye Lecanora. On rocks and trees 

 near Cork ; Great Island ; Cable Island. common. 



336. L. tartarea, Ach. Cudbear Lecanora. On rocks at Ardrum, 

 and by the Lee : Mr. Alexander. rather common. 



337. L. citrina, Ach. Lemon Lecanora. On rocks and walls 

 near Cork, in all directions. common. 



Tribe VIII. Squamariece. 

 446. PSORA, Hoff. PSORA. 



338. P. caruleonigricans, Hook. Blackandblue Psora. Blackrock 

 and several places near Cork. common. 



447. SQUAMARIA, De Cand. SQUAMARIA. 



339. S. candelaria, Hook. Candle Squamaria. By the Dyke, and 

 on trees and rocks in the county. common. 



340. S. murorum, Hook. Wall Squamaria. On walls at Passage 

 and by the seashore. common. 



341. S. qffinis, Hook. Spongy Squamaria. On trees at Kilbrit- 

 tain, near Bandon : Mr. Alexander. rare, 



448. PLACODIUM, De Cand. PLACODITJM. 



342. P. canescens, D.C. Grey Placodium. On an old church at 

 Leemount ; Timoleague Abbey : Mr. Alexander. Youghal : Miss 

 Ball. rather rare. 



243. P. plumbeum, Hook. Spongy Placodium. Ardrum. common. 



Tribe IX. Parmeliacece. 

 449. PARMELIA, Ach. PARMELIA. 



344. P. caperata, Ach. Wrinkled Parmelia. Castlemartyr : Miss 

 Ball ; and on rocks and trees at Lota, &c. common* 



N 



