THE MARINE BOTANIST. 121 



or less abundance with short, awl or spindle-shaped, 

 erect ramuli." Colour, deep red or brownish, 

 becoming blackish in drying. Substance rigid, 

 adhering slightly to paper. 



P. furcellata. Very rare. Floating in the 

 sea at Sidmouth. Dredged in Torbay. Carrick- 

 fergus. Roundstone, Cunnemara. Five or six 

 inches long, much entangled, and excessively 

 branched, the divisions dichotomous, very close 

 towards the extremities. Tubes about eight. 

 Colour, a bright brick-red, changing to a deep 

 amber colour. Substance, at first firm, but becom- 

 ing flaccid immediately. 



P. parasitica. Grows on the larger algse, and 

 more frequently on nullipores at the extreme limit 

 of low water-mark, not uncommon, but nowhere 

 very abundant. Stems somewhat compressed, 

 rigid, simple, distichously branched. Articulations 

 about as long as broad, three-tubed. Colour, rose- 

 red, brownish when dried. Cartilaginous, and 

 adhering imperfectly to paper. Remarkably fine 

 on the Ayrshire coast, and at Arran. Mrs. Gulson 



