126 An HISTORY of FUNGUSSES, 



I 

 I 



CLIX. SPH./ERIA aggregata, fubcompojita irregularis perforata 

 petfufa. virefcens. Weigel, Obf.Bot. p. 46, No. 9, t. 2, Jig. 15. 



Weber, Spicil. Gott. p. 282. iVb. 298. Lichen pertufus. 

 Linn. Mentif. PL Anno 1767, />. 131, No. 82. Dillen. 

 Mufc. t. 1%, Jig. 9. M?V/6. G^«. /. 52, on/. 32, H, I, K, 

 L, M. Relhan, Flor. 421, Afo. 838. Hudfon Angl. 525, 

 11. Lightfoot, Scot- 802,5. Sphaeria pertufa. Hagen, 

 Hiji. Lichen. Pruf. p. XLIX. 



PIERCED SPHAERIA. 



TAB. CXXVI. 



'TpHIS grows on the barks of afh trees, in patches of various 

 "*■ figures, and, according to its age, from an inch to a foot 

 in diameter. It is, whilft young and growing, of a greenifh 

 afh colour ; when old or dried, of a pale dufky afh colour. 

 It confifls of numerous Sphaeria cloie thruft together, the 

 largeft occupying the middle part j their fize gradually 

 diminifhing towards the margin, on every fide. Each feparate 

 Sphaeria, of the general aggregate, contains from two to fix 

 fphaerulae, at firft filled with a white gelly, afterwards with 

 black feeds ; and after the difcharge of thele feeds, the empty 

 vefTels remain open for many months. The plant is figured of 

 its natural fize, as it grew on a piece of afh bark, at a. A few 

 feparate Sphaeria, before the opening of the feed vefiels, are 

 magnified at b. A fingle one is cut horizontally, and laid open 

 at e. to fhew the white fubfiance of the plant within, and the 

 difpofition of the black fphaerulae, as they lie imbedded in it. 

 At c. a fingle one is magnified, to fhew the open vefiels as they 

 abide after the difcharge of their contents. — d. is a vertical 

 fe&ion, when the feeds are ready to be difcharged. 



Grows abundantly, on the barks of living afh trees, in the 

 neighbourhood of Halifax. 



