50 BRITISH SEA-WEEDS. 



and chnoos, wool, in reference to the tufts of fibres which 

 adorn the spore-receptacles. 



This genus contains four or five species, all of which 

 are natives of temperate climes. One only is found on 

 our coasts, and that but sparingly. 



Sporochnus pedunculatus. Pedunculated Spo- 

 rochnus. 



Frond from a few inches to a foot or more long, pinnately 

 branched, of a pale olive-colour and tender texture ; branches 

 long, simple, set on at right angles to the stem. Spore- 

 receptacles elliptical. 



This is a very beautiful plant, and is easily distin- 

 guished by its slender, simple stem, and its thread-like, 

 tuft-covered branches. 



Genus X. CARPOMITEA. 



!Frond flat, forked, mid-ribbed. Fructification in mitre- 

 shaped receptacles, at the ends of the branches, composed 

 of whorls of branched, spore-beariug filaments arranged 

 round a vertical axis. — Caepomitba, from the Greek karpos, 

 a fruit, and mitra, a cap. 



The number of species of this genus is very limited, 

 and only one occurs in a northern latitude. 



Carpomitra Cabrerse. Cabrera's Carpomitra. 



Boot a small tuber. Frond about six inches high, forkeJly 

 branched, mid-ribbed; branches erect, linear, narrow, flat, 

 constricted at intervals. 



Dr. Harvey, in the ' Phycologia Britannica,' writes of 

 this plant : — " Specimens having never been found but 

 once, and then only washed ou shore, we may be allowed 

 to entertain the fear that this interesting plant is not 



