(f: 



GORGONIA. 201 



many opposite furrows; pinules almost always simple^ 

 numerous, long, linear, and furrowed ; polypi long", 

 placed laterally or on the narrowest part of the pi- 

 nules ; axe brown ; rind violet in a living state ; height 

 from three to twelve decimetres. 



Var. B. American ; pinules always at the sides. 

 Var. C. Hairy ; pinules sometimes scattered. 

 Var. D. Acute; pinules long, flexible, and dispersed. 

 Var. E. Sanguine ; pinules very long, polypi of a 

 deep purple, almost black. 



Norwegian and Mediterranean seas, and coasts of 

 Africa and equatorial America. 



LOOSE. 



3. GoRGONiA laxa. Branches loosely palmated and 

 flattened ; the ramifications crooked ; rind orange-co- 

 lour, and porous ; height from two to three decimetres. 



FLEXUOUS. 



4. GoRGf^^ I A Jlexuosa, Very branching, fan-shaped, 

 and almost reticulated ; branches sub-dichotomous, 

 flexuous, and expanded ; rind rather thick, corky, 

 knotty, and friable ; height from ten to fifteen centi- 

 metres. 



Indian Ocean. 



SPOTTED. 



5. Gorgon I A petechizaiis. Very branching ; branches 

 with two opposite furrows ; rind yellow ; polypi red, 

 either simply and marginally ranged, or in double or 

 more dispersed rows. 



Atlantic and Mediterranean. 



Cor. 2 c 



