toZ CRYPTOGAMIA ALG^, 



olive and white or grey, in the fame manner a$: 

 in the border of the AGARICUS verficohr. 



In the centre of the circle are many contiguous 

 pale, wrinkled tubercles, covered with a fmooth 

 coat or pellicle ; which pellicle burfls, and dif- 

 coversan irregular excavated fhield, containing 

 a white powder. Befides thefe tubercles there 

 are numerous cracks v/hich run in lines from the 

 centre of the cruft towards the circumference. 



Whether this apd the preceding arediftind fpecies, 

 or only different fexes of the fame fpeiies, is a 

 matter of fome doubt. 



£&raW$uSi6 L, leprofus ramofus teres fafciculatus falligiatus 

 corfertiflimus albus. SyJ}. Nat. edit. 13. p. 805. 

 (Diikn. mufc. i. 17. f. zd-fimilis^Jdvix eadcm.) 

 Coralline Lichen. Anglh. 



Upon the Highland rocks, as about Finlarig, in 

 Breadalhane^ &c. Mr. Stuart. We received the 

 fame alfo. from Dr. Burgefs^ of Kirkmichaeh in 

 Vumfriejhire. 

 At firft view this appears to be only a v/hite tar- 

 tareous cruft, about i-fth of an inch thick, 

 with an unequal furface, form'd into knobs or 

 buttons; but, being broken, and examined with 

 a microfcope, it is found to confift of compa(51 

 bundles of fhort, round, floney, branched, co- 

 ral like fibres, the branches all obtufc and ever 

 at the top, without tubercles. 



L. leprofu! 



