﻿552 Bicknell: Ferns and flowering plants of Nantucket 



commons, mostly single plants or a few together. Plants one 

 foot high June 29, 1912; not in flower up to August 16, 1906; in 

 full flower early in September, continuing in bloom through the 

 month. 



HiERACIUM GrONOVII L. 



Very common in dry open places throughout, flowering in 

 August and September. 



Note — Hieracium scabrum Michx. occurs on Martha's Vine- 

 yard and on Chappaquiddick Island and may yet be found on 

 Nantucket. 

 * Hieracium aurantiacum L. 



In June, 1909, Mrs. Mary A. Albertson showed me fresh 

 flowering specimens of the orange hawkweed that had been 

 brought in to the rooms of the Maria Mitchell Association, having 

 been gathered back of the dunes near the bathing beach. 

 Hieracium marianum Willd. 



Not anywhere growing in close formations but scattered openly 

 everywhere over the plains and commons this is one of Nan- 

 tucket's characteristic plants. It blooms from early June through 

 September, and doubtless, as on Martha's Vineyard, well into 

 October; but autumn flowering seems to come about as a sort of 

 second flowering period, for there is a late summer interval when 

 the species passes nearly or quite out of bloom. Earliest leaves 

 appearing May 30, 1909; first flowers June 8, 1908, June 12, 1909, 

 June 15, 1910. 



On Nantucket this species displays a ready variability deviating 

 from its proper type into perplexing forms that appear to be more 

 or less intermediate with Hieracium venosum L., or even scarcely 

 to be distinguished from that species. Some examples, indeed, 

 might readily pass without question for H. venosum, but I have 

 not yet seen any Nantucket specimen that I could feel satisfied 

 should bear that determination. On the other hand frequent 

 examples match quite perfectly those more pronounced forms of 

 H. marianum that develop a stout papillose-hirsute stem, leafy 

 up to the firmly branched panicle. But the prevailing Nantucket 

 plant is less coarsely pubescent and has the larger cauHne leaves 

 reduced in number to one or two only, low on the stem, and a 



