﻿564 Bicknell: Ferns and flowering plants of Nantucket 



greater development of pubescence and a less erect habit than 

 their usual mainland forms. First flowers early in September, 

 1904; in full bloom September 10, 1907, 

 Euthamia graminifolia (L.) Nutt. 



Local in dry places in all quarters of the island, especially on 

 the eastern side, but irregularly distributed and wholly wanting 

 throughout extensive areas. Not yet in flower August 16, 1906; 

 first flowers September 17, 1907. 

 Euthamia tenuifolia (Pursh) Greene. 



In dry or in damp sandy soil, or even in heavy soil in low 

 grounds. Perhaps the commonest and most generally distributed 

 golden-rod of the island, unless S. nemoralis should bear that dis- 

 tinction. Just in flower August 16, 1906. 



Perplexingly variable. Some coarser forms appear to be quite 

 intermediate with E. graminifolia. More delicate plants formerly 

 included with this are better referred to the following, which, 

 however, may be viewed with some reservation as to its validity. 

 Euthamia minor (Michx.) Fernald. 



Common, in its extreme form appearing like a very distinct 

 species, but apparently intergrading with the preceding. 

 Sericocarpus linifolius (L.) B.S.P. 



Widespread over the downs and commons and invading open 

 tracts of scrub pine, growing in separate often solitary tufts of 

 stiff clustered stems. First flowers July 11, 1912, in full flower 

 through August; late flowers in protected places September 12, 

 1907. 

 Sericocarpus asteroides (L.) B.S.P. 



Everywhere on the open commons and hillsides, as well as in 

 pine woodland, growing in small colonies of separate plants. First 

 flowers July 11 , 1912 ; in full flower through August and continuing 

 to bloom through most of September. 

 * Aster divaricatus L. 



Not uncommon in Squam, and occasional in Polpis, but so 

 closely hidden in dense thickets as to be little seen unless carefully 

 sought for. In full flower September 17, 1907. 



