Fig. 47. CHOEDAEIA FLAGELLIFOKMIS. 



Colour. Dark olivaceous green; inclining to brown. 

 Substance. Firm and sinewy. 



Character of Frond. Tliread-like {f liform); branched; of equal thickness 

 throughout. Stem branched on each side. Branches long, alternate, 

 mostly simple; occasionally a few branchlets upon them. Fringed 

 all over with fine, colourless hairs, which can only be seen when it 

 is under water, but give it a slimy feel when out. 



Measurement. From 3 inches to 3 feet long; from 1 to 2 hog^s bristles 

 thick. 



Fructification. Minute seeds {spores) concealed in the substance of the frond. 



Hahitat. Our coasts generally. On rocks and stones between tide-marks. 

 Common. 



The hairs give this plant a feathery appearance in the water. 



Fig. 48. CHORD ARIA DIVARICATA. 



Colour. Olive; much paler than C. flagelliformis ; brown in old age, and 

 when dried. 



Suhstance. Firm and elastic; surface slimy. 



Character of Frond. Thread-like [filiform), branched; forming globose tufts. 

 Branching partially forked {sub-dichotomous) . Branches wavy, furnished 

 in the upper part with scattered, short, mostly forked, branchlets. 



Measurement. From 1 to 3 feet long. A hog^s bristle thick. 



Fructification. Minute seeds (spores) concealed in the substance of the frond. 



Habitat. Belfast and Carrickfergus. Thrown up from deep water. Bare. 



Outwardly resembling Stilopliora rhizodes. 



24, 



