G. AGLAOPHENIA. 75 



much branching ; branches opposite, and diverging ; 

 colour, a bright fawn ; height from one to two deci- 

 metres. 

 Seas of Australasia. 



PLUMED. 



11. AGLA.OPHENIA pluma. Cells slightly gibbous 

 and toothed ; ovaria denticulated at the edges with 

 transverse and oblique rings, on the side of the 

 stem. 



European seas. 



MARINE. 



12. Aglaophenia pelagica. Stem simple; cells 

 oval, with a small opening ; ovaria oval, smooth, and 

 shining on the surface ; height about a centimetre. 



On the fucus natans. 



BEAUTIFUL. 



13. Aglaophenia speciosa. Cells only on one 

 side, campanulated, toothed, and with stipulas; 

 branches pinnated and curved. 



Coasts of Ceylon. 



GLUTINOUS. 



14. Aglaophenia glutinosa. Root in fibrous 

 branches; stem simple, and pinnated; pinnies ap- 

 proximate, and alternate ; cells without visible appen- 

 dage ; colour, a bright and brilliant red ; height from 

 six to eight centimetres. 



Indian and Australasian seas. 



DELICATE. 



15. Aglaophenia gracilis. Stem simple, and j>in- 



