116 PAPERS, ETC. 



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BT ISABELLA GIFFORD, 



Author of the " Marine Botanist. " 



IN examining the chief characteristics of the Marine 

 Flora of Somerset, I shall at first enumerate those 

 kinds wbich are incligenous on the coast, commencing with 

 the Melanosperms or olive-green divislon of the Algae. 

 "VVe find four species of Fuci growing luxuriantly through- 

 oiit the district, viz. : — Fucus veslculosus, F. serratus, F. 

 nodosus, and F. canalicnlatus. Not so any examples of 

 the Laminariacea3, nor of the Sporochnus, Dictyota and 

 Chordaria tribes. In the Ectocarpacefe, we have Clados- 

 tephus spongiosus, growinoj occasionally on stones near 

 Iow-water mark below Mlnehead Pier, — and the beaded or 

 moniliforra fruited variety of Ectocarpus littoralis, I find 

 ou wood-work near high-water mark at ^linehead. This 

 ia the kind described in the first and second editions of 

 " Harvey's Manual of the British Algae," but is not that 

 figured in the " Phycologia," t. 198. This last has oblong 

 striated fruit, and appears to vegetate at a greater depth 

 than the former. Professor Walker Amott observes, that 



