the BritiJJj Fvd $ with particular Defcriptions of each Species. i\y 



others. When growing on the loofe (tones in the Ifle of Portland 

 it is frequently infefled with Conferva aruginofa. 



Little globular tranfparent proceffes, refembling bladders, fome- 

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

 have 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 fructification in Fact. Perhaps the tubercles (which 

 Reaumur afTerts are capfules) are fcattered in dufty clufters at firft 

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

 glojfon, alatus, kalformis, &c. &c. and at length one or more (the 

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



Thefe procefTes appeared to us too feldom to deferve admifrion 

 into the eflential 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 ramofifTima, ramis uniformibus dichotomis verticilla- 



tifque. 

 Herb. P ether, p. 25. n. 5. Buddie, p. 12. n. 2. Morifon, Hifl. 



Ox. 3. /. 15. /. 8. /. 4. Stackhoufe, Ner. Britt. p. 28. /. 8. 



a. b. Fl. Scot. p. 959. Withering^ vol. 3. p. 240. 

 Ulva articulata. Fl. Ang. p. 569. 

 Vol. III. Ff Habitat 



