1902] Rich, — Oak Island and its Flora 91 



in extreme southeastern part. Mr. M. L. Fernald says of this 



tree that it is a form of the species which is common on 



Vancouver Island and adjacent coasts. 

 Sisyrinchium angustifolum, Mill. (S. Bermudiana of the List). 

 Polygonum avicu/are, L., var. littorale, Koch. Occasional around 



southern border and in low grass-land. 

 Polygonum proli/icum, Robinson (/'. maritimam of the list). Very 



abundant around the borders. 

 Solatium Dulcamara, L. Several plants in eastern part. 

 Sanicula gregaria, Bicknell. Very abundant in western part. 

 Myosotis arvensis IIoiTm. Numerous plants in extreme eastern part. 



June 10, 1899. 

 Lycopus Virginicus, L. In eastern part. Sept. n, 1S9S. 

 MonarJa mollis L. (Monarda fistulosa of the list). 

 Leonurus Cardiaca L. A colony of this species appeared, 189 1, in the 



western part. 

 Rubns nigrobaccus, Bailey. 

 " argu/us, Link. 

 " sp. ? Not yet satisfactorily identified. Abundant on the 



western border. 

 Pyrus arbutifotia, L. f., var. melanocarpa, Hook. {P. arbutifolia, var. 



erythrocarpa of Young's List) . A rather puzzling plant with 



pubescent leaves during early part of the season, but the 



black globular fruit that of melanocarpa. 

 Agrimonia gryposepala, Wallr. Frequent in the western part. 



" striata, Michx. Occasional in the western part. 



Galium Mollugo, L. First collected by H. A. Purdie 1896, in 



extreme northeastern part. The specimens are immature and 



may prove, as suggested by Dr. J. M. Greenman, to be 



Galium erectum, Hudson, another European species. 

 Nyssa sylvatica, Marsh. A few young plants three or four feet high 



were seen Aug. 30, 1896. As this species grows abundantly 



across the marsh on the Saugus side, directly opposite Oak 



Island, it is probable that berries brought by birds caused 



its appearance here. Not seen recently. 

 Potentilla Canadensis, L. Eastern part. May 23, 1900. 

 Amphkarpa Pitcher i, T. & G. See Rhodora, Vol. 1, p. 27. 

 Helianthemum maj'tts, B. S. P. Open ground, eastern part. June 



28, 1896. 



