CATALOGUE OF PLANTS. 239 



DTCTYOSIPHONACE^. 



DICTYOSIPHON, Grev. 



D. hippuroides (Lyngb.), Aresch. 



Common. Little Cranberry Isle; near Seal Harbor, an J 

 elsewhere (Collins) ;—" Mt. Desert" (Holden). 



D. fceniculaceus (Huds.), Grev. 



Common with the last (Collins) ; — Southwest Harbor (Holden). 



ENCGELIACEiE. 



ASPEROCOCCUS, Lamour, 

 A. echinatus (Mert.), Grev. 



On Fucace^e. Near Seal Harbor (Collins). 



PHYLLITIS, Kuetz. 

 P. fascia (Fl. Dan.), Kuetz. 



Common in tide pools along the shore (Collins); — Sea Wall 

 (Holden). 



Var. caBspitosa (J. Ag.), Farlow. 



With the type, hut not so common (Collins). 



SCYTOSIPHON, Ag. 

 S. lomentarius (Lyngb.), J. Ag. 



Very common everywhere on the coast (Collins). 



PUNCTARIA. Grev. 

 P. latifolia, Grev. 



Occasional at Seal Harbor (Collins). 



DESMOTRICHUM, Kuetz. 



Similar to Punctaria, but the frond consists of one row or a 

 few rows of cells; the plurilocular sporangia either immersed, 

 sessile, or on short stalks. 



