the Brili/h Fud, iviib particular Defcriptions of each Specks. 2 1 7 



others. When growing on the loofc ftones in the Iflc of Portland 

 it is frequently infefted with Conferva acrugimfa. 



Little globular tranfparent procefles, refembling bladders, fome- 

 times are to be found on the fides of the finer branches, which we 

 liave defcribed as covered with minute tubercles — fometimes they 

 adhere to the branches themfelves, and appear to contain minute 

 feeds ; but this appearance is by no means conftant. It is incredible 

 how the plant is difguifed when loaded, as it fometimes is, with 

 thefe veficles. See Fig. 2. 



Thefe procefles rightly obferved might perhaps help to elucidate 

 the mode of fru6lification in Fuci. Perhaps the tubercles (which 

 Reaumur aflerts are capfules) are fcattered indnfly clufl:ers at firfl 

 along the branches in an embryo ftate, as is obfervable in Hypo- 

 glojon, alatus, kaliformh.^ &c. &c. and at length one or more (the 

 reft proving abortive) become fertile, and fwell into complete form. 



Thefe procefles appeared to us too feldom to deferve admifllon 

 into the eflfential character. The finer ramuli ufually are to be ob- 

 ferved furrounded with minute tubercles — each tubercle contains a 

 feed obovate, and acute at one end. 



64. FUCUS ARTICULATUS. 



F. fronde membranacea filiformi-tubulofa concatenatim arti- 



culata ramofiflima, ramis uniformibus dichotomis verticilla- 



tifque. 

 Herh. Petiver, p. 25. n. 5. BudJle^ p. 12. «. 2. Mcnfon, Hj/i. 



^^' 3- / 15- '• 8. /. 4- Stackhoufe, Ner. Br'ttt. p. 28. /. 8. 



a. b, Fl. Scot. p. 959. IJlithering^ vol, 3. p. 240. 

 Ulva articulata. Fl. Jng. p. 569. 

 Vol. III. Ff Habitat 



