84 THE MARINE BOTANIST. 



particularly well-grown. Stem shaggy at the base 

 and rather thick; from three to four inches high^ the 

 branches slender, delicately pinnate, and resem- 

 bling in aspect a miniature fern-leaf. Colour^ 

 when fresh, a brownish straw, changing, when 

 dry, to a light and delicate olive-green. Grows 

 on rocks and algae near low water mark. Peren- 

 nial. Summer and Winter. 



SPHACELARIA SERTULARIA.— SERTULA- 

 RIA-LIKE SPHACELARIA. 



This, Dr. Harvey thinks, ought, perhaps, ra- 

 ther to be regarded as it used to be — viz., as only 

 a slender and small variety of the former plant — 

 than a distinct species. It differs from S, Jilicina 

 in its very patent branching, and is found para- 

 sitical on algae dredged up from a depth of from 

 four to fifteen fathom water. Brighton, Isle of 

 Wight, Jersey, Torbay, and other places on the 

 south coast. Carrickfergus , Roundstone Bay, 

 Cunnemara. 



