81 
Trichostema dichotomum, LZ. (BLUE CURLS.) 
Dry sterile fields. Common. 
Mentha viridis, Z. (SPEARMINT.) 
Danvers (Dr. Osgood’s list), Rockport (Pool), West Gloucester, 
Groveland, etc. Frequent. (Nat. from Eu.) 
Mentha sativa, Z. (WHORLED MINT.) 
Chebacco road, Hamilton, Aug. 24, 1874. (Adv. from Eu.) 
Mentha piperita, Z. (PEPPERMINT.) 
Rockport (Pool), Nahant, Danvers, Wenham, etc. Occasional. 
(Nat. from Eu.) 
Mentha Canadensis, Z. (WILD MINT.) 
Meadows. Common. 
Lycopus Virginicus, ZL. (BUGLE-WEED.) 
‘““Near Salem” (S. B. Buttrick, Proc. E. I. Vol. II, p. 241), Beverly 
(John C. Phillips), Essex County (Dr. Chas. Pickering). Seem- 
ingly not very common. 
Lycopus sinuatus, £il/., L. Europzus, var. sinuatus (Gray’s Man- 
ual). Moist ground. Common and quite variable. A native species. 
Lycopus Europzus, Z., appears only in this county as an adventi- 
tious plant and probably does not grow here. 
Hyssopus officinalis, L. 
Escaped from old gardens in a few places. Georgetown (Mrs. 
Horner). (Adv. from Eu.) 
Pycnanthemum muticum, Pers. (MovunNTAIN MINT.) 
‘Very rare, stone barn, Swampscott” (Tracy); Danvers (J. H. 
Sears; and a few other places in the county. Scarce. 
Pycnanthemum lanceolatum, Pursh. 
Georgetown (Mrs. Horner), and the towns in that neighborhood. 
Scarce. 
Origanum vulgare, Z. (WILD MarJoram.) 
Georgetown (Oakes), Rowley (Rev. J. L. Russell). Not common. 
(Nat. from Eu.) 
Thymus Serpyllum, Z. (CREEPING THYME.) 
‘““Dry pastures, Boxford, 1819, Oakes and Osgood ” (Oakes in 
Hovey’s Mag. Vol. VII). (Adv. from Eu.) 
Thymus vulgaris, Z. (GarpDEN THYME.) 
Cultivated in gardens, occasionally escaping. Beverly (W. D. 
Silsbee). 
Hedeoma pulegioides, Pers. (AMERICAN PENNYROYAL.) 
** Clearly the ‘peneriall’ seen by W. Wood i. 5—and Higginson, east- 
ern Massachusetts, and ‘upright peniroyal’ of Josselyn Rar. 44.” 
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