13i BRITISH SEA-WEEDS. SJMclanosjiemiece, 



described by Clemeiite in liis list of Spanish Algee, and the 

 specific name is in honour of his friend, Don Antonio 

 Cabrera. 



Genus XII. AETIIEOCLADIA, Bnhy. 



Generic Character. Frond fiHform, celhilar, with an articuLated 

 tubukr axis, nodose; the nodes producing- ^vllorls of dehcate, 

 jointed filaments. Fructification, pedicellate moniliform pods, 

 borne on the filaments, and containing at maturity a string 

 of elliptical spores. — The name is from two Greek words, signi- 

 fying ^ joint and a branch. — Harvey. 



1. AllTIIROCLADIA VILLOSA, DuhlJ. 



Hab. On submarine rocks, shells, &c., and on Zostera in 

 deep water. Rare. Annual. Summer and autumn. South 

 of England. Yarmouth, Mr. Turner; Anglcsea, Eev. H. 

 ].)avis ; Exmouth, Mrs. Gulson ; Frith of Forth, Mr. Ilas- 

 sall ; Ardthur, Capt. Carmichael; Cumbraes, jMajor Martin ; 

 AVicklow, Prof. Harvey; Malahide, Mr. M'CaUa; Jersey, 

 Miss White and Miss Turner. 



This elegant plant was formerly included in the genus 

 Sjjoruchnns. It was afterwards made the type of a new 

 genus, under the name of ArUirocladla, by Duby in France, 

 and Elaionema by a highly distinguished British botanist, 



