232 FLORA OF MOUNT DESERT. 



D. alata (Huds.), Lamour. 



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

 Boggs). 



RHODYMENIACE^E. 



RHODYMENIA, J. Ag. 

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



Common everywhere on the shore (Collins) ; Sea Wall 

 (Holden). 



RHODOPHYLLIDACE^E. 



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); Sea Wall (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 coast of the Island (Collins). 



