THE MARINE BOTANIST. 27 



ARTHROCLADIA VILLOSA. — FIBROUS 

 ARTHROCLADIA. 



Fronds very slender, from six inches to nearly 

 three feet long ; pinnated with opposite, very sel- 

 dom alternate, simple or again pinnated branchlets, 

 which are furnished at regular intervals with small 

 joint-like swellings, set round with delicate jointed 

 conferva-like filaments of a pale green colour ; the 

 lanceolate spore-pods are borne on these fibres. 

 Grows attached to various substances in four to 

 five fathom water. Annual. Summer and Autumn. 

 Rare. Coast of England ; several localities, chiefly 

 on the southern shores. Yarmouth. Sidmouth. 

 Torbay. Minehead, Somerset, thrown up from 

 deep water, but very rarely. I. G. Anglesea. 

 Jersey. At Wicklow, Malahide, and Carrickfergus, 

 in Ireland. Frith of Forth. Ardthur. 



