LOW-WATER MARK. 93 



like fronds of dark red, edged with little leaflets, op 

 rather torn edges, which are dotted with spores and 

 look darker than the frond, so giving it a bead-like 

 border. This plant is valuable to the botanist. It 

 has a curious habit of growing so close to the rocks, 

 asd adhering by little roots from the under side of 

 the frond, that it is difficult to get it off uninjured ; 

 but it also comes to us on the stems of Laminaria, and 

 in a tangle with other weeds after a storm. 



j^iTOPHYLLTni Bottn-emaisonia. — A very pretty 

 delicate variety, fan-like, with scattered groups of 

 tetraspores, and faint veins from the root distinguish 

 this plant. The habit of the frond differs much in 

 various individuals, some being broad and scarcely 

 cloven, others deeply cleft into ribbon-like segments. 



It is a deep-sea species, parasitic on Laminaria, and 

 found in the Channel Islands, on the Irish coast, and 

 at Torquay and Ilfracombe. 



JS'lTOPHTLLTTM GrMELLNT and NlTOPHYLLUM VER- 

 SICOLOR are varieties not common, and thrown up by 

 a storm from June to August. 



PLOCAMIUM. 



(Xame meaning " intertwining hair," in allusion to the finely-branched 

 fronds.) 



This is tbe desire of all hearts in collecting for 

 fancy work, or album, or microscope : a treasure for 

 every one. "We hear a scream of delight from the 



