164 FLORA OF MOUNT DESERT. 



S. maritimus, L. 



Salt marshes and muddy beaches along the coast ; very 

 common. 



S. sylvaticus, L., var. digynus, Boeckl. S.mlcrocarincs, Presl. 



Wet ground; common. Blooming earlier than the next. 

 S. atrovirens, Muhl. 



Wet ground; frequent. Northeast Harbor; High Head; 

 Prettymarsh ; South v\^est Harbor; Seal Cove, etc. (Hand); — 

 Seal Harbor (Eedfield). 



ERIOPHORUM, L. Cotton Grass. 

 E. cyperinum, L. Scirpus Eriojihorum, Mx. 



Wet ground; common and variable. 

 Var. laxum (Gray), Wats. & Coult. 



Frequent. Seal Harbor; Long Pond meadows; Bubble Pond 

 (Redfield) ; — Southwest Harbor (Rand). 



E. alpinum, L. 



Rare. Bog, Northeast Harbor (R. & R.); — borders of 

 Upper Breakneck Pond (Redfield). 



E. vaginatum, L. 



Peat bogs and swamps ; frequent. Southwest Harbor; Sar- 

 gent Mt. (Greenleaf, Lane & Rand) ; — Little Cranberry Isle ; 

 Great Heath (Redfield) ; — Sunken Heath, etc. (Rand). 



E. Virginicuin, L. 



Open bogs and swamps; common. A form bearing unequally 

 peduncled spikelets, Great Cranberry Isle (Rand). 



E. polystachyon, L. 



Frequent. Meadow on Sunken Heath Brook (Redfield); — 

 Sea Wall Swamp (Rand); — Prettymarsh (Greenleaf, Lane & 

 Rand). 



Var. latifolium (Hoppe), Gray. 



More common than the type, — if the varietal distinction is 

 valid. Sargent Mt. (Greenleaf, Lane & Rand); — Hulls Cove; 



