. 88 



Fron i.t forming dense, expanded tufts, 3-15 cm. long. d;irk purplish 

 brown to reddish-yellow or yellowish, wi h more or less vi >let or blue-greenish 

 iiunnce. Filaments very soft and flaccid, with varnish-like lustre 'when 

 dried, simple, straight or crooked, 20-35 // thick in sterile portion, con" 

 sisting of single row of cell?, in fructified pjrtion c)mpos;>d of many 

 rows or almost parenehymatically disposed ceils (often 150 n in diam.) 

 having different thickness according to ages. Articulations \-\-\ times 

 long as diam., mos:ly half times long. In drying the plant firmly adheres 

 to paper. 



Huh. : On rocks, stones, woods etc. near high tide. Very common 

 along the both coasts of this country. 



PI. CLXXl, Fig. 6-12. Fig. 6: fronds of fia/igia Jttsco-ptirfrurea 

 (Dillw.) Lyngb., ]. Fig. 7-10: different pan's of one and the same 

 filament, -9 ; 7 : basal rooting portion; 8: sterile portion a little above 

 the base ; 9 : fertile portion more above than in the ri.t 8 with cells radially 

 divided as shown in fig. 12 ; 10: uppermost porti^p with fully grown car- 

 pospores. Fig. 11: cross-section of filament as shov:n in rig. 8, ; ~. fig . 

 12: cross-section of filament with cells radially diviJed as shown in fig- 

 9. 3 ^. (The printed colour of Rua^'ia is much different from the 

 noimal, I hough in some individuals dark violet color is sometimes ob 

 cerved.) 



Bangia Lyngbye 1819. 



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 BANGIACEAE, 2ANGIALES. T L ^ i; JJj. '- L It b f|. 



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