Fig. 359. LYNGBYA FLACCA. • 



Colour. Bright green. 

 /Substance. Yery soft; flabby. 



Charade?' of Frond. Short tufts of straight, or gently curved, jointed threads 

 {filaments), parasitic on other algge; simple, or bearing here and 

 there a few root-like branchlets. Filaments very slender; finer than 

 human hair. 



Joints. Half as long as broad; at first more or less filled with colouring 

 matter [endochrome) which afterwards contracts into a dark spot in 

 the centre. 



Measurement. From half an inch to an inch long. 



Fructification. Minute seeds [zoos])ores) formed of the colouring matter in 

 the joints, collected into a round central mass {sporidium) , which in 

 due time bursts out. 



Habitat. Our coasts generally. (Filey.) On various algae and in tide-pools. 

 Not uncommon. 



Now Hormotriclmm flaccum. For other Lynghyas, see Plate LXXYIII. For 

 the characters of Hormotriclmm, refer under Fig. 328. 



Fig. 360. HORMOSPORA RAMOSA. 



Colour. Pale green. 

 Substance. Gelatinous. 



Character of Frond. Yery slender, tubular threads {Jilaments) ; more or less 

 branched; containing, when young, nearly cylindrical colour-cells; when 

 mature, distinctly oval or spherical ones; the colouring matter 

 (endochrome) within radiating in lines from a centre (a microscopic 

 object.) 



Measurement. From J to 4 an inch high. 



Fructification. Minute seeds [zoospores) formed of the coloured cells, which 

 then become oval, and finally drop out. 



Habitat. Near Wareham, Dorsetshire, in a salt-water lake. 



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