Fig. 135. DASYA COCCINEA. 



Colour. A dull or fine crimson, becoming scarlet on exposure or in fresh water. 



Substance. Elastic; firm; but turning soft and decomposing after a few hours in 

 fresh-water. 



Character of Frond. Thread-like (^filamentous) ; delicately, much branched. Stems 

 robust and rough with minute hair-like fibres; generally undivided; branched 

 like a feather (pinnate). Branches simple, alternate, the lowermost longest, 

 gradually shorter upwards; twice re-branched; the last branchlets many times 

 forked. Stem and branches opaque; branchlets jointed. 



Measurement. From 6 to 8 inches long. 



Fructification. Of two kinds; external. 1. Clustered spores in ovate, rather pointed, 

 capsules; at the base of the branchlets. 2. Tetraspores in oblong, pointed, 

 sticliidia. 



Habitat. Our coasts generally, on rocks, &c. near low-water mark. Common. 



Yar. /3. tenuior is more slender in all its parts. Yar. y has naked branches, 

 and the branchlets are minute, nearly simple, their points turning in all directions 

 (squarose). (See figure of magnified branch.) For other Dasyas refer back to 

 Plate XXY. Fig. 107; and forward to Plate XXXI. Fig. 137; and Plate XXXIY. 

 Fig. 152. 



Fig. 136. CHEYSYMENIA CLAYELLOSA. 



Colour. A dulHsh semi-transparent red when actually growing; soon becoming a 

 beautiful brilliant pink. 



Substance. Gelatinous; soft; slippery; adhering closely to paper. 



Character of Frond. Bushy; thread-shaped (filiform)-, slender; much branched; 

 tufted or solitary; tubular. Stems undivided; gradually widening from the 

 base to the middle; thence diminishing to the end; alternately or irregularly 

 branched. Branches long, undivided, opposite or alternate; once or twice 

 re-branched; all the stems tapering to tlie base and top (apex); bearing one 

 or more series of linear-lanceolate branchlets, closely set. They, as well as 

 the branchlets, usually set at one level (distichous), but sometimes springing 

 from all sides of the frond, making it a thick bush. 



Measurement. From 3 to 12 inches long. 



Fructification. Of two kinds. 1. Clustered spores in conical, stalkless capsules. 

 2. Tetraspores immersed in the branchlets. 



HaMtat. Yarious stations on the coasts of England, Scotland, and Ireland. On 

 rocks, &c. near low-water mark; and on the stems of Laminaria, at a greater 

 depth. Not uncommon. 



This plant is now called Chylocladia clavellosa, a name by which it was known 

 many years ago. A short, very bushy variety, which cannot be laid out without 

 a good deal of clipping of crowded branches, is to be found on the steep sides 

 of the rocks not far from low-water mark, on the north side of Filey Bridge. 

 It never turns the rosy pink of the larger and more usual plant; is less fre- 

 quently divided, and has a tendency to bear its tetraspores in groups [sari), 

 towards the middle and base of the branchlets. The usual {normal) form is 

 very abundant, occasionally at Filey, but, like many other algae, it is whimsical 

 in its times of appearance. For another Chrysymcnia, see Plate XXXI. Figs. 

 141, 142. 



