Ser. CHLOROSPERMES. Fam. Ulvacea ? 
Pirate CCXLVI. 
BANGIA () ELEGANS, Chaw. 
Gen. Cuar. Frond filiform, tubular, composed (in the typical species) of 
numerous radiating cellules, disposed in transverse rows and enclosed 
within a hyaline, continuous sheath. Spores purple or green, formed 
within each of the cells of the frond. Baneta (Lyngb.),—in honour 
of H. Bang, a Danish Botanist, and friend of Lyngbye. 
Baneta? elegans ; filaments minute, dichotomously branched, with very 
patent axils; branches containing a single row of simple or binate, 
purple granular cells. 
Baneta elegans, Chauv. Mem. Soc. Linn. Norm. vol. vi. p.13. Aly. Norm. 
Fase. vii. no. 159. Recherches, p. 33. 
Has. Parasitical on the smaller alge. Very rare. Dredged in Strang- 
ford Lough at Portaferry, adhering to Gracilaria confervoides, Wm. 
Thompson, Esq. (1838.) 
GroeR. Descr. Coast of Normandy. 
Distr. Forming minute tufts, 1-2 lines long, resembling, to the naked eye, the 
tufts of Callithamnion Daviesii in colour and size. Filaments dichotomously 
branched, several times forked, the branches cylindrical, curved, spreading, 
with very wide axils, obtuse at the tips. The younger parts of the filament 
contain a string of closely-set lenticular granules or cells, arranged like 
those of a Zyngbya. In the older parts the cells are less regularly placed 
and are more distant, of a broadly spindle-like form with a division in the 
centre, as if composed of two conical or sugar-loaf bodies. These are pro- 
bably the ripe spores, which escape on the bursting of the tubular filament. 
The colour of the spores is a purplish lake, becoming greenish in decay. 
RAE 
The only British specimen of this curious and beautiful little 
plant that I have seen, was dredged several years ago by my 
friend Mr. Thompson, of Belfast, who communicated it to me, 
and allowed me to retain a portion, from which the figure here 
given has been prepared. ‘This I have compared with an 
authentic specimen of Chauvin’s plant, received from M. Lenor- 
mand, and find them to agree in all essential particulars. The 
chief difference is in colour, the Irish specimen having lost its 
original purple and acquired a greenish shade; no uncommon 
effect of decay. 
