Ser. CHLOROSPERME. Fam. Confervee. 
Pruate CCCLVI. 
CLADOPHORA BALLIANA, Zarv., n.sp. 
Gen. Cnar. Milaments green, attached, uniform, branched, composed of 
a single series of cells or articulations. J ruit, aggregated granules 
or zoospores, contained in the articulations, having, at some period, 
a proper ciliary motion. CraporHora (Kitz.),—from «rados, a branch, 
and gopew, to bear. 
CiaporHora Balliana ; filaments elongate, extremely slender, soft, grass- 
green, much branched ; the branches excessively divided, the penul- 
timate ones virgate, and set with slender, secund, one- or two-jointed 
ramuli; articulations of the branches eight or ten times as long as 
broad, of the ramuli six to eight times, all filled with dense, granular 
endochrome ; dissepiments broad and hyaline. 
Has. Sea-shores. At Clontarf, Miss Ball (May 16, 1543). 
Grocer. Distr. ? 
Descr. Filaments finer than human hair, from six to eight or ten inches long, 
tufted and much branched, the branching repeatedly alternate, but irregular 
and difficult to trace ; with a more or less evident leading stem. Lesser 
branches one or two inches long, somewhat virgate, undivided, set with 
other minor branches, which again bear numerous short, pectinate ramuli, 
generally along their inner faces. These ramuli are much more slender 
than the joint from which they spring, and usually consist of but two cells, 
but occasionally lengthen out into several. The branches and lesser divi- 
sions taper, at the extremity, into a slender point. The endochrome filling 
the cells is remarkably dense, granular, and in great measure recovers its 
form on remoistening after the plant has been dried ; and is of a full grass- 
green. The length of the cells in the principal divisions is from eight to 
ten times their diameter, or perhaps more; in the ramuli the cells are 
shorter. The border of the tube and the dissepiments are both very wide 
in proportion to the part occupied by endochrome. The substance is soft 
and tender, and the plant closely adheres to paper in drying. 
RRR 
I am glad, in closing the ‘ Phycologia,’ to have an opportunity 
_ of paying a grateful tribute to the fair discoverer of the present 
beautiful species, from whom I have, during the course of this 
publication, received much assistance—m supplies of specimens, 
&e.—and to whose acute eye the Irish Flora is indebted for the 
addition of many interesting species. Cladophora Balliana, not 
the least beautiful of these, is readily known from all its British 
