the Br'ti/h Fuci, with particular Eefcripions of each Species, 113 



In fomeof the older fpecimens, but very rarely, thefc procefTes are 

 alfo to be feen on the nerves, as well lateral as principal, on each 

 furl'ace of the leaf; and even on the naked nerve, where it has been 

 deprived of its membrane. When in this ftate they are of different 

 fizes, and clearly fhew themfelves to be really proliferous leaves, 

 evincing the remarkably ftrong reproductive property poffefled by 

 this i'pecies, to which the various forms in which it appears are 

 principally owing ; for, in a very advanced flate, it frequently hap- 

 pens that the membranaceous part of the leaf is much torn and de- 

 ftroyed, the ribs then appear like branchings of the ftem, and from 

 every part of them young leaves are fcen to arife, and even from 

 the ribs and nerves of the decaying leaves. 



The whole plant is bright red, the leaves membranaceous, ex- 

 tremely thin and delicate ; the fru6tification deep red, when ripe 

 nearly black. 



/3. a variety occurs, though rarely of a fubftance approachino- to 

 cartilaginous, in which the procefTes oq the margin are more dif- 

 tant, much larger, and appear flat to the naked eye, fhewing them- 

 felves to be teeth and not fpines or cilia, each having, when in 

 frudlification, a larger and more confpicuous tubercle imbedded in 

 it. We have met with this variety only at Cromer on the coafl: of 

 Norfolk. 



4. FUCUS HyPOGLOSSUM. 



F. caule ramofo alato, foliis lineari-lanceolatis planis integer- 

 rimis proliferis. Linn. Tranf. v. 2. p. 30. /. 7. 

 F. HypoglofTum — F. lingulatus. Solander in Herb. Bankf. 

 Habitat in rupibus fubmarinis fatis frequens. 

 Radix callus minimus crafTus — From 2—3 uncialis la;te rubra. 

 Vox-. III. Q membranacea 



