Hqo CRYPTOGAMIA ALG.'E. 



pence-, each leaf of a whitifli green colour, thick 

 and opake, once or twice divided, and termi- 

 nared with two obtufe lobes, having a longitu- 

 dinal furrow running along the middle from the 

 bafe to the circumference through every lobe. 

 The fruflifications we have not obferved, but they 

 are hid to be fmall globules, dilpofed in rows 

 within the fubftance of the leaves. 



LICHEN. Gen. fd. 1202. -jj 



MASC. Rectptaculum fubrotundum, planlufcuium 



nitidum. 

 FEM, Farina foiiis afpcrfa* 



A. * Leprojl tuhercidatu 



Jcriptus I. LICHEN Ic^profua albicans^ lineolis nigi^s ramofis 

 charafteriiormibos. Sp. pi 1906. {Muhel gen. /, 

 56./. 3 JMtn.mufc. t. 18./. I ) 



Lettered Lichen. Anglis. 



On the fmooth bark of trees frequent, as on beech^ 

 oak, hornbeam, &c. 



This IS readily diftinguifhed by it's black fruftifi- 

 cations, refembUng fmall oriental charafters, 

 which, under the microfcope, appear to be lon- 

 gitudinally v/.inkkd. 



There are two very remarkable varieties of this 



Lichen, which might perhaps be more properly 



cunddered as diftind Ipecies. 



hebraicusn. Ihe ftril has large black, fmooth fruftifications, 



llandlnj^ in high relief, of no reguhr figure, but 



from 



