«o2 CRYPTOGAMIA ALGvE. 



Th« cruft is green, befet with numerous fmall 

 crowded tubercles, the whole furrrounded with 

 a black margin. This differs but very little 

 from the preceding, and is perhaps only a va-' 

 ricty of it. The tubercles are flat, not elevated 

 but level with the cruft. 



riigchs 4. L. lepofus albicans, lineolis fimplicibus pundifq. 

 nigris confertis. Sp. pi. 1607. Dillen. mufc^ 1. 18. 

 /. 2.; 

 W rink If d Lichen. Atiglis. ' '' '■ 



On the fmooth bark of tr^cs frequent. 

 The ground or crufl: of this is fo thin as 'to be 

 hardly difcernible. What little there is to be 

 Icen of it is whitifb, and fometimes of a dull green 

 colour. The frudiifications are innumerable 

 fmall black tubercles or docs, lb" crowded tose- 



■ _ o 



ther as to form black fpots of various fize and 

 hgurc, running tranfverfcly upon the bark. 

 Thcfc dots in ihe old fpecmiens are difpofed in 

 waved lines or furrows, which give the whole 

 lurface of the crull a wrinkled appearance. 



pfrtiijus 5. L. Icprofus, ver'rucis fubteflellatis la^vigatis pertuHs 

 poro uno alterove cylindrico. Syjl-. nat. edit. 13. 

 f, 805. L. letrucofus. Hudf. FL, Jng. p. 445.^ 

 (Dillen. miifc. /. 18./. 9.J 

 Porous warty Lichen. AngUs. -^ . 



Upon trunks of trees, and rornetlmes upon rocks. 

 The crufl is fmooth, of a greenifi afh-colour when 

 njoift, cinereous when dry, and covered v/it!i 



numerous 



