﻿BiCKNELL : Ferns and flowering plants of Nantucket 551 



in early flower June 14, 1908, June 19, 1910, June 28, 1912; 

 continues to bloom until late in September. 

 SONCHUS asper (L.) Hill. 



Less often seen in the town than at far outlying points, mainly 

 along shores. First flowers July 12, 1909; in full flower July 13, 

 1 91 2; blooms until late in September. 



* Lactuca virosa L. 



Farm yard in Madequet, September 14, 1907, a colony of 

 about two dozen plants of vigorous growth but bearing no flowers. 

 At this station on July 10, 1912, only a few plants were to be 

 found. The plant was the common one having unlobed denticu- 

 late leaves as distinguished from the pinnatifid-leaved L. Scariola 

 L. 

 Lactuca hirsuta Muhl. 



Mainly on the hills and open slopes on the eastern side of the 

 island, the plants usually solitary or so widely separated in their 

 association as to appear so. Frequent in Shawkemo Hills and 

 Saul's Hills, Polpis, Siasconset, South Pasture; rare on the western 

 side of the island. In full flower August 7, 1906; some plants 

 continuing to bloom after the middle of September. 

 Lactuca canadensis L. 



Scattered widely over the island in dry, open places, sometimes 

 growing in pure sand with. Ammo phila arenaria, the plants usually 

 solitary or not more than a few together. Often reduced in size 

 and with numerous crowded leaves, only the lower ones spreading 

 and pinnatifid, those above much narrowed and entire and tending 

 to be subappressed. Blooms from midsummer until after the 

 middle of September. 



* Lactuca spicata (Lam.) Hitchc. 



Damp thickets along the Wauwinet road at Shawkemo and 

 Quaise. There it is rather common but elsewhere it was seen 

 only by an old storehouse near the wharves, a single very tall 

 plant, in 1906. In full flower September 5, 1904. 

 Hieracium canadense Michx. 



Nowhere common but scattered widely over the downs and 



