ramuli. Apices fastigiate, attenuate, in some varieties very much so. Capsule 
obtusely conical, scattered over the upper articulations, opening by a minute 
pore, the walls thick and composed of minute cells. Tetraspores plentifully 
scattered through the tissue of the articulations. Colour varying from a 
dull to a bright red, or crimson, purplish and iridescent when growing in 
deep water, glossy, and transparent; becoming darker when dry. Swd- 
stance membranaceous, gelatinous within. In drying it adheres, but not 
strongly, to paper. 
w 
Strange to say, this plant was once regarded as a variety of 
Gelidium corneum! a blunder for which it is difficult to account, 
the two plants being unlike in form and substance. Stunted | 
individuals of Chylocladia articulata much more closely resemble 
Catenella Opuntia, and may sometimes be mistaken for that 
plant, although the colour is never so lurid as it always is in 
the Catenella. An appeal to the microscope may sometimes be 
necessary to the young student, and then there can be no diffi- 
culty, the whole structure is so different. 
Our figure represents a portion of an average-sized specimen 
from the west of Ireland. This plant often occurs larger—and 
often very much smaller and more slender. I have some curious 
varieties from ‘Torquay, in which the branches are much twisted 
and arched, and very slender. ‘They were matted together in 
crisp balls, from the excessive abundance of the upper ramuli, 
and could hardly be pulled asunder without tearing. 
Fig. 1. CHYLOCLADIA ARTICULATA ; a branch the xatural size. 2. Small por- 
cion with capsules. 3. Section of a capsule. 4. Small portion with tetra- 
spores. 5. A tetraspore :—all more or less magnified. 
