128 SEA MOSSES. 



2. Frond regula^'ly forking. 

 (^.) Long, elastic, worm-like, axils wide and 



rounded. Nemalion. 



{b.) Short, stiff, black, widely forking, uniform 

 size, not adhering to paper. Three or 

 four inches high. Polyides. 



(^.) Same outline, soft, adheres, rosy red. 



Scinaia. 

 3. Plants clothed with fine hairs. 



{a.) Stem robust; branches few, long and O 



mostly simple. All parts thickly clothed 

 with brilliantly colored pink or purple 

 fine hair, like " Chenille." Dasya. 



{p.) Stem and branches slender, several times 

 divided; hairs much p^er, shorter and 

 less abundant. Spyridia. 



Fronds many times and finely divided, robust 

 or slender, mostly dark or brow7i. 

 (a.) Ultimate ramuli, often in clumps or '' 

 minute brushes, black or brown. ' 



Rhodomela. 

 {b.) Plants variously, but profusely branched, 

 mostly fine, often arborescent, fruit 

 vessels pear-shaped; black, reddish or 

 light brown, Polysiphonia. 



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