EOW-WATEE, MAES. 85 



iigent observers and collectors of seaweed, Mrs. Grif- 

 fiths, who found magnificent specimens growing along 

 the mud-covered base of the harbour pier at Torquay. 

 It was first gathered on the shores of France by Mons. 

 Graleloup, who sent specimens to the elder Agardh, 

 by whom it was published in the year 1828. 



The expression " fern-leaved " well describes this 

 most graceful of the beautiful tribe to which it belongs; 

 the finely-pinnated branches are indeed like fairy 

 ferns. There is a peculiarity in its fruit-bearing : the 

 tetraspores are usually sessile, or seated along the 

 small branchlets in rows ; here they are single and 

 at the tips of the pinncs or lesser branches. The fa- 

 vellce, usually at the tips, are here at the base of the 

 ramuli, and very distinct. 



We find this on the face of perpendicular rocks at 

 low water, under the heavy masses of Fucus. 



Callithamnion Thuyoideum. — Much smaller but 

 somewhat like Callitliamnion Gracillimum in the ele- 

 gance of its fronds : the plant is altogether more ro- 

 bust and regular, a main stem branching alternately 

 right and left, scarcely two inches high, and not easily 

 distinguished without minute examination. The^a- 

 vellcB burst irregularly from the stem instead of the 

 usual bi-lobed berries. The plant is rare. Has been 

 found at Torquay, Yarmouth, Falmouth, Ilfracombe, 

 and Jersey. 



Caeeithamxio^ Byssoideem. — This is found most 

 frequently on Codium Tomentosum, in tufts from two 

 to four inches long. The collector will do well if lie 



