232 FLORA OF MOUNT DESERT. 



D. alata (Huds.), Lamour. 



A minute frond of this species on Ptilota pectinata (L. R, 

 Boggs). 



RHODYMENIACE^. 



RHODYMENIA, J. Ag. 

 R. palmata (L.), Grev. Dulse. 



Common everywhere on the shore (Collins) ; — Sea Wall 

 (Holden). 



RHODOPHYLLIDACEiE. 



EUTHORA, J. Ag. 



E. cristata (L.), J. Ag. 



A minute frond of this species on Ptilota pectinata (L. R. 

 Boggs). 



CYSTOCLONIUM, Kuetz. 

 C. purpurascens (Huds.), Kuetz. 



Not uncommon. Little Cranberry Isle, and elsewhere (Collins). 



GIGARTINACE^E. 



AHNFELDTIA, Fries. 

 A. plicata (Huds.), Fries. 



Rather common in tide pools (Collins); — SeaWall (Holden). 



GIGARTINA, Lamour. 



G. mamillosa (Good. & Woodw.), J. Ag. 



Common near low-water mark (Collins) ; — Sea Wall (Holden). 



CHONDRUS, Stack. 

 C. crispus (L.), Stack. Irish Moss. 



Common nearly everywhere on the coa'^t of the Island (Collins). 



