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A valuable addHioii to the British Lichen — Flora . 

 By the Rev. W. Johnson. 



It was my good fortune to discover recently an interesting 

 addition to our British Lichen — Flora. 



I have beside me considerable lichen-material gathered 

 years ago, and which, up to the present I have not found time 

 to work up. But being confined to the house I have recently 

 turned my attention to this material, and in a gathering from 

 St. Bees, Cumberland, I found on examination, what turned 

 out to be not only a new lichen to Great Britain, but a new 

 genus also, which is that of Sarcopyrenia Nyl. This genus 

 only contains one species which is named Sarcopyrenia gibba 

 Nyl. It is a very distinct and interesting lichen, having a 

 sort -of double clavate sporidia, unlike the sporidia of any 

 previous Ikitish species. 



Dr. Nylander records this lichen as previously found in 

 Algiers, Switzerland, and Germany. It grows on arenaceous 

 and limestone rocks. In growth my specimens are associated 

 with Lecanora vitellina Ach., the yellow thallus of which must 

 not be confused with that of Sarcopyrenia. I found this new 

 lichen on the shore rocks St. Bees, and on the Whitehaven 

 side of those rocks from the entrance from St. Bees Village. 

 The rocks were large and flat, and almost on the sand level. 



I sent a specimen of this lichen to the British Museum, 

 where Miss A. L. Smith, F.L.S., confirmed my discovery, a 

 notice of which appears in her new volume which completes 

 the New Monograph on British Lichens ; published under 

 the direction of the Trustees of the B.M. 



I may also say, that this new lichen is included in the 13th 

 Fascicuous of my "North of England Lichen-Herbarium." 



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