202 Dr. GooDENouGH and Mr. Woodward'j Ob/ervations on 



extraordinary exertion, and of courfe there is not ftrength to repeat 

 it often. We apprehend that this is the cafe with our prefent 

 plant : having received an injury, it is capable of making a feeble 

 effort to reftore itfelf, and after that fubmits to its fate. 



We have thus defcribed faithfully what wc have feen. If any 

 one fhould doubt our folution of the phenomenon of the rings, 

 perhaps if he refides for any length of time on the fea- fide, and will 

 take the trouble of marking any particular plant, and will cut, or 

 rather break off, the extremities of the branches, poffibly he may 

 fee the reparation made in the manner which we have mentioned. 



It differs from lumbricalis by the wide opening of the ramifications 

 of the branches approaching almoft to a right angle ; and from 

 that and radiatus by the fliortnefs and bluntnefs of the branches. 

 Lumbricalis has thefe rings occafionally, but,being of a firmer texture, 

 is more feldom broken off, and of courfe bears fewer marks of re- 

 paration. 



Specimens whereon the rings are to be feen, remain in Uvedales 

 Herbarium, p. 9. n. 4. and in the CoUcdtion by Buddie and Vermtiy 

 /•• 18. «. 5. This laft anfwers very nearly to our defcription of 

 var. /3. 



55. FUCUS RADIATU5. 



F. fronde filiformi dichotoma ramofa, ramis fubaequallbus 

 acuminatis, angulis ramificationum obtufiufculis; tuber- 

 culis lateralibus. 

 F. rotundus. Gmelin, p. iio. /. d.f. 3. R. Syn. p. 45. «. 24. 

 var. ad finem. 

 Habitat in faxis marinis apud Cromer in Norfolcia. 

 Adharct faxis callo explanato, furculos emittente, unde nova» 



fiunt 



