Rev. T. Salwey on the Cryptogamic Flora of Guernsey. 25 



Jungermannia complanata. 

 polyantlios. 

 viticulosa. 

 bidentata. 

 heteiophylla. 

 serpyllifolia. 



Jungermannia dilatata. 

 tamavisci. 



/3. monilensis. 

 epipliylla. 

 furcata. 



Usnea plicata. 

 Evernia flavicans. 

 Ramalina calicaris. 



a. fraxinea. 



/3. fastigiata. 



Lichenes. 



Ramalina polllnaria. 



polymorpha. 

 scopulorum. 

 Roccella tinctoria. 

 fuciformis. 



I cannot agree with the authors who unite these two plants. 

 If intermediate states are to be considered as a sufficient ground 

 for uniting what have hitherto been considered distinct species, 

 then must a great many more of the Cladonia be united than is 

 now done, for between the greater part of the diiFerent species in 

 this genus there are so many intermediate states, that it is ex- 

 tremely difficult to know to what species to refer many speci- 

 mens. Manufactui-ers have noticed that the tinctoria is very 

 superior as a dye to the fuciformis, and my friend Mr. Lukis has 

 pointed out to me a distinction between these two plants which 

 I was not before aware of, but which the examination of a great 

 number of specimens enabled me to confirm ; viz. that the sap of 

 tinctoria is of a deep yellow, staining the fingers when gathered, 

 whereas that of the fucifoiinis is not so. It is perhaps to be re- 

 gretted that chemical tests have not been resorted to in endea- 

 vom'ing to distinguish between nearly allied plants. 



Cetrai'ia sepincola. Parmelia olivacea. 



Peltigera resupinata. 

 /3. parilis. 

 canina. 



(3. pusilla; spm-ia, ^4ch. 

 rufescens. 

 polydactyla. 



Hib. 



Sticta auiata. Jerbourg, Mr. Luhis; 

 on tbe rocks N. of tbe Eperquerie, 

 Sark, T. S. 

 Sticta fuliginosa. 

 limbata. 

 scrobiculata. 

 pulmonaria. 

 glomulifera. 

 herbacea. 

 Parmelia perforata, 

 perlata. 

 tiliacea. 

 Borreri. 

 saxatilis. 



^. omphalodes. 

 y. sulcata, Fl. Ilib. 

 physodes. 



caperata. 



rugosa, Fl. 



conspersa. 



parietina. 



i. concolor; candelaria, 

 Ach. 



laevigata, Ach. & E. B. 



scortea, do. 



chrysophthalma. In an or- 

 chard at Sark. 



leucomela. Jerbourg and 

 S.W. point of Rocquaine 

 Bay, Mr. Lukis. 



ciliaris. 



aquila. 



pulverulenta. 



speciosa. 



stellaris. 



/3. hispida; Lichen tenel- 

 lus, E. B. 



erosa, Siippl. to E. Bot. 

 2807. 



