128 ; 
Var. intermedium, Fries. (nearly) Gray. 
West Gloucester. The spikes of this variety are much larger every _ : 
way than the common form. 
Secale cereale, Willd. (Ryr.) 
Derby Wharf, Salem. (Escaped.) 
Hordeum vulgare, Z. (BaARLry.) 
Salem, Essex, etc. Waste places. (Escaped.) 
Hordeum jubatum, Z. (SQuIRREL-TAIL GRASS.) 
Marblehead Neck, Beverly, Ipswich (Oakes), etc. Frequent near 
the shore. 
Elymus Virginicus, L. 
Frequent. Usually nearer the shore than the next. 
Elymus Canadensis, L. 
Merrimac river banks, from Lawrence to Newburyport. 
Elymus striatus, Wilid. 
Ipswich (Oakes), West Gloucester, Georgetown (Mrs. C. N. S. 
Horner), along the Merrimac river banks, etc. Frequent. 
Gymnostichum Hystrix, Schreb. (BOTTLE-BRUSH GRASS.) 
Swampscott, Hamilton, Oak Island, Revere. Scarce. 
Danthonia spicata, Beauv. 
Dry soil. Common. 
Danthonia compressa, Austin. 
Frequent near Boston (C. E. Faxon), and undoubtedly an Essex 
county species. It has but recently been separated from the last. 
Avena sativa, Z. (Common Oar.) 
Waste places, railroad beds, wharves, etc. (Escaped.) 
Avena striata, Michx. 
‘“¢Manchester” (S. P. Fowler), banks of the Merrimac, West New- 
bury. Rare. 
Aira flexuosa, Z. (Harr-Grass.) 
Dry soil. Frequent. 
Arrhenatherum avenaceum, Beauv. 
‘“‘Near Salem” (Dr. Chas. Pickering), probably about 1824; old 
fields, Danvers (J. H. Sears), and sometimes cultivated. Scarce. 
(Nat. from Eu.) 
Holcus lanatus, Z. (VELVET Grass.) 
‘‘Sparingly naturalized in the environs of Salem” (Dr. Chas. Pick- 
ering, Chron. Hist. Pl., p. 655). This was probably about 1824. It 
is now abundant, spreading fast in moist soil, and, unless care is 
taken, will injure much valuable grassland. (Nat. from Eu.) 

