192 Dr. GooDENOUGH and Mr. Woodward'j Ohfervaiiom on 



Radix callus minimus furculos protrudens unde novse fiunt 

 plants — Frons folitaria vel numerofa, comprefTa, purpurafcens, 

 3 — 4uncialis,craffitic fill emporetici minoris, ramofiffima — iJaw/fsepi- 

 us oppofiti, rarn fparfi, bafi attenuati — Rjtnu/i fefliles, fed breviffi- 

 mi, erc6liufculi, apicibus incraffatis obtufilTimis truncatis — Frunifi- 

 c^//c, tLiberculamiriuta in lamulorum apicibus, necnon ad ramoium 

 latera fita, atro-purpurea. 



This fpecies, which appears to have been firfl defcribed by the 

 author of the Flora Anglica, cannot be confounded with any in this 

 divifion, unlefs the varieties /3 and yoi corneus, from both which it 

 is eafily to be diftinguilbed by being, though cartilagineous, of a 

 more tender fubftance ; by having the branches attenuated at the 

 bafe ; and, not with (landing they are comprefTed, not fo completely 

 flattened ; by the fomewhat eredl growth of the ramuli ; and more 

 particularly by having the branches truncated at the end, and by 

 the fru6lification : this confifts of minute nearly black tubercles, 

 fituated in the dilated terminations of the ramuli, as defcribed by 

 Mr. Hudfon ; and alfo, as we have obferved not unfrequently on 

 our fpecimens, on the fides of the larger as well as the fmaller 

 branches. The primary frond is continued throughout, the branches 

 are fhort near the bafe, longer in the middle, and very fhort towards 

 the fummit, giving the whole an ovate form. — ^The principal 

 branches are clothed with fecondary ones growing in the fame 

 manner, and thefe with the extreme ramuli ; nor have we obferved 

 it farther divided. 



49. FUCUS LICHENOIDES. 



F. fronde dlchotoma ramofi, ramis apice dilatatis ; tuberculis 

 globofis terminalibus. 



6 Lichen 



