CATALOGUE OF PLANTS. 239 



DICTYOSIPHOISrACE^:. 



DICTYOSIPEON, Grev. 

 D. hippuroides (Lyngb.), Aresch. 



Common. Little Cranberry Isle; near Seal Harbor, and 

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



D. fcEniculaceus (Huds.), Grev. 



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



ENCCELIACE^. 



ASPEROCOCCUS, Lamour. 

 A. echinatus (Mert.), Grev. 



On Fucacese. Near Seal Harbor (Collins). 



PHYLLITIS, Kuetz. 

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



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

 (Holden). 



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



With the type, but 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. 



