110 THE MARINE BOTANIST. 



branched above the branches^ alternate or secund, 

 spreading' in a fan-like manner, the branchlets bear- 

 ing secund, erect ramuli ; sometimes straight, but 

 more frequently with their tips hooked inwards. 

 ^^ The whole plant marked, at short intervals, with 

 transverse striae, which give it a jointed appear- 

 ance." Substance, cartilaginous. Colour, a dull 

 red, becoming black in dying*. Grows on rocks 

 near low water-mark. Perennial. Fruiting* in 

 Winter. Southern shores of England, frequent. 



0. S. jK. complanata. Very rare. Grows on 

 the rocky beds of shallow tide-pools, exposed at low 

 water-mark to full sunshine. Perennial. Summer. 

 Dredged in Plymouth Sound. Land's End. Eantry 

 Bay. Caarush Point, Miltown; abundant in one 

 or two tide-pools, but very local. — Dr. Harvey, 

 Fronds compressed, two or three inches high; 

 branches with acute axils. Colour, a dark brownish 

 red. 



jB. thuyoides. Grows on rocks in tide-pools. 

 Perennial. Summer and Autumn. Not uncommon. 

 Very abundant on the West of Ireland. Fronds 



