116 SEA MOSSES. 



^ . . .-rdcr.— DICTYOSIPHOME^.. 

 Qcuu%—DICTyOSIPI/Ch\^ Grev 



DicniisipHdN KENicuij^cKt^s, Grev. 



This is our only species of this genus. It grows 

 in itx k pools and l)elow tide, .md occurs from L. I. 

 Sound northward. Init is more common in our 

 norihcm waters. Frond filiform, ah*"' <s thick as 

 a bristle ; harsh to the touch ; froni bi\ inches to 

 two feet long ; profusely and irregularly branched 

 on all sides from lop to bottom. The primar)' 

 branches are long, and closely beset with secon<lary 

 l)ranrhes which arc also lung and straight, and often 

 of hair-like tenuity. Color, a brownish olive, dark 

 when dr)'. It adheres pretty well to paper in dry- 

 ing. Mr. Collins collected it from March to .Sep- 

 tember, at Nahant and Nantasket. I found it not 

 uncommon at Marblehead, all summer, an<l Miss 

 Ikx)th reports it in Pcconic Hay, L. I. Others 

 have found it at IJoslon and New[)ort. It certainly 

 nuy be expected in favorable localities all along the 

 coast. It is not noted for its beauty as a herba- 

 rium specimen. 



* DictyoMpboB -• A nctte<l tobe. 



