50 



Eubus vlllosus, Ait. (High Blackbeury.) 

 The tall prickly form often growing ten feet high is common every- 

 where. The low form Is also abundant. Another more bushy va- 

 riety with abundant flowers, poor fruit, and very densely covered 

 with short prickles, grows at Danvers (J. H. Sears). The smooth 

 form which is found at the Profile House region in New Hampshire 

 does not seem to grow here. 



Rubus hispidus, L. (Running Swamp-Blackberry.) 

 Common, although hardly ever found in swamps. 



Bosa Carolina, L. (Swamp Rose.) 

 Abundant along moist roadsides. 



Kosa lucida, Elirhart. (Wild Rose.) 

 Very common. Varying somewhat according to situation. 



Bosa rubiginosa, L. (Sweet-Brikr.) 



Common in fields and along the roadsides. (Nat. from Eu.) 



Bosa micrantha. Smith. (Small-flowered Swebt-Brier.) 



" Danvers " (Dr. Osgood's list) ; " Cape Ann" (Mrs. Downs). Not 

 in the county collection at the P. A. S. (Nat. from Eu.) 



Bosa einnamoniea, cultivated in old gardens; often found in de- 

 serted places. (Adv. from Eu.) 



Crataegus Oxyaeantha, L. (English Haw^thorn.) 



"Near Pranker's mills, Saugus " (Tracy); Derby estate, Salem. 

 Cultivated and established in some places. (Adv. from Eu.) 



Crataegus coeeinea, L. (Scarlbt-fruited Thorn.) 

 Ipswich, Topsfield, Danvers, etc. In the central and northern re- 

 gion more frequent than in the southern. 



Crataegus tomentosa, L. (Black Thorn.) 

 In the region of the last. The form found in the county seems to 

 be var. punctata; the leaves, however, vary considerably. 



Pirus arbutifolia, Ait., var. melanoearpa. (Choke-berry.) 

 Common along roadsides in rocky places. ' 



Var. erythrocarpa. 

 Amesbury near the Merrimao shore. 



Pijus Americana, DC. (American Mountain-Ash.) 

 Essex County (Oakes) ; "occasional at Lynn" (Tracy); Danvers 

 (Dr. Osgood's list). Scarce. 



Pirus aueuparia, Qmrtn. (European Mountain-Ash.) 

 Often cultivated, and as the fruit is much sought by birds, the 

 young trees are frequently found escaped. (Adv. from Eu.) 



Pirus malus, the Apple, and also 



Pirus communis, the Pear, have been cultivated from the earliest 

 settlement of the county. The former frequently, and the latter oc- 

 casionally, are found escaped at long distances from cultivated lands. 



