Ser. CHLOROSPERMEA. Fam. Ulvacee. 
Prate CCCXXII. 
BANGIA CILIARIS, Carm. 
Gey. Cuar. Frond filiform, tubular, composed (in typical species) of 
numerous, radiating cellules, disposed in transverse rows, and en- 
closed within a hyaline, continuous sheath. Syores purple or green, 
one formed within each of the cells of the frond. Baneta (Lyngi.), 
—in honour of Hoffman Bang, a Danish botanist and friend of 
Lyngbye. 
Baneta ctliaris; filaments gregarious, very minute, simple, straight, com- 
pressed, purple; grains two or three in each transverse band, globose, 
sometimes solitary. 
Baneta ciliaris, Carm. MSS. Hook. Br. Fl. vol.ii. p.316. Harv. Man. 
ed. 1. p. 172. ed. 2. p. 218. Chauv. Recherches, p. 37. 
GoONIOTRICHUM ceramicola, Var. a. simplex? Kiitz. Sp. Aly. p. 358. (so far 
as reference to Carm. and Chauv.) 
Has. On the margins of old leaves of Zostera marina. Annual. Spring. 
Appin, Capt. Carmichael. 
Geroer. Distr. Shores of Scotland, and the north of France. 
Descr. Filaments gregarious, about half a line in length, fringing the leaves of 
Zostera in narrow patches one or more inches in length. Each little thread 
is erect, straight, or slightly curved, variable in diameter, sometimes con- 
taining but a single series or row of granules; oftener containing a double 
row, and now and then a triple row. All these variations of structure 
sometimes occur in the same plant, in which case one portion is broader 
than another, and usually it is the middle portion which is distended. The 
granules are roundish, somewhat depressed at the poles, and of a brilliant 
purple colour. 
PPP A II eeesnee 
By much the most minute of the genuine species of Bangia, 
and not very different from what the youngest state of B. fusco- 
purpurea tay be supposed to be. I have seen no specimens 
but those found by Capt. Carmichael, and now deposited in the 
Hookerian Herbarium, and from one of these our figure and 
description have been taken. Capt. Carmichael describes it as 
commonly fringing the leaves of Zostera at Appin, and probably 
it may be found in many places where it has been overlooked, 
its minute size protecting it from all but a very careful eye. 
¥2 
