“48 
Prunus domestica (PLvM), 
Prunus Persica (Pracu), and 
Prunus Cerasus (CHERRY), are of course frequent in cultivation; the 
two last named are often found by walls and roadsides escaped, 
although seldom reaching any great size. 
Spireea salicifolia, Z. (Common MEavow-SwEEet.) 
Damp ground. Common. 
Spireea tomentosa, LZ. (HARDHACK.) 
Very common in rather drier situations than the last. 
Spirseea Ulmaria (Adv. from Eu.) and also the 
Spirzea lobata (a western species), which -are cultivated in old 
gardens, are found escaped in Wenham, Topsfield and Danvers, by 
the roadside. Scarce. 
Spirea sorbifolia, L. 
Much cultivated; frequently runs wild; found escaped in Beverly 
(Frank Stone). (Adv. from Eu.) i 
Poterium Canadense, Benth € Hook. (CANADIAN BURNET.) 
Gloucester, scarce (Mrs. Babson); Hamilton; Ipswich; Topsfield; 
frequent in meadows; not found in the Salem or Lynn region. 
Agrimonia Eupatoria, Z. (COMMON AGRIMONY.) 
Common in various parts of the county. 
Geum album, Gmelin. 
Very common by roadsides, etc. 
Geum Virginianum, L. 
Essex County (Dr. Chas. Pickering) ; ‘‘ occasional in Lynn” (Tracy). 
Not in the county collection at the P. A. S. 
Geum strictum, Ait. ° 
‘‘ Rare in Lynn” (Tracy); Wenham; Ipswich (Oakes); Danvers 
(Buttrick) ; and in other places. 
Geum rivale, Z. (WaTER OR PURPLE AVENS.) 
Quite common in meadows. 
Dr. Chas. Pickering found (1823-4) ‘‘a curious Geum at Orne’s 
Point, Salem, with green petals; perhaps a variety of G. album, or 
possibly another species.” 
Potentilla Norvegica, L. 
Common in dry soil. 
Potentilla Canadensis, Z. (FIVE-FINGER.) 
Hillsides everywhere. One of our earliest spring flowers. 
Var. simplex, T. & G. | 
Later, but quite as common. 
Potentilla argentea, Z. (Sitvery CINQUE-FOIL.) 
Railroad beds and roadsides. Common, 

