THE MARINE BOTANIST. 53 



ZONARIA COLLAEIS.— CUP-SHAPED 

 ZONARIA. 



Primary frond, when mature, leathery in colour 

 and substance, widely spreading*, furnished on its 

 lower surface with a dense woolly coating, by 

 which it adheres firmly to rocks; the upper sur- 

 face is smooth, variously plaited; but by the 

 action of the waves, &c., becomes very much torn 

 and lobed. From this frond arise secondary cup- 

 shaped ones, fixed by short stalks, delicately mem- 

 branaceous in texture, and easily torn. Fruit un- 

 known. The secondary fronds of this plant were 

 found by Miss Turner, washed ashore, quite fresh, 

 in Grouville Bay, Jersey, May, 1851. ^^ Very 

 rare." "The firmly attached primaries may pos- 

 sibly be reached by dredging on the coast," — Phyc, 

 Brit. PI. 359. 



TAONIA. 



Name meaning a peacock. 

 Frond flat, imperfectly fan-shaped, irregularly 



