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BicKNELL : Ferns and flowering plants of Nantucket 9 



Unifolium canadense (Desf.) Greene. 



Locally abundant in low thickets, especially about Tom 

 Never's Swamp and in Polpis ; Shawkemo ; Rattlesnake Bank ; 

 Pocomo ; Trot's Swamp ; Long Pond. In flower June 7 ; fruit 

 well developed June 15 ; some fruit remaining Sept. 15, 1907, 



Salomonia biflora (Walt.) Britton. 



Scarce and local ; Rattlesnake Bank ; Polpis thickets. Some 

 dried flowers remaining June 7; ripe fruit Sept. 11, 1907. 



Medeola virginiana L. 



Infrequent ; Rattlesnake Bank ; low thickets in Shawkemo and 



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Polpis, In flower June 7. 



SMILACEAE 



Smilax herbacea L. 



Shrubby banks and thickets, infrequent and met with only east 

 and north of the middle of the island ; sometimes growing with 

 exceptional vigor. Shimmo Creek Bank ; Rattlesnake Bank and 

 thicket to the east; Squam, at Watt's Run and east along the 

 Wauwinet road. Just in flower June 7 ; fruit ripe Sept. 17, 1907. 

 On Rattlesnake Bank it had climbed to a height of 10-12 feet, 

 producing peduncles 18 cm. long, borne down by the heavy umbels 

 of as many as fifty-five berries, the larger umbels 7 cm. in 

 diameter. 



Smilax rotundifolia L. 



The fully typical plant is common in low thickets, becoming 

 stout and high-climbing in favorable situations and sometimes 

 forming an impenetrable thorny tangle. In flower and with young 

 fruit June 9 ; no mature fruit seen. 



Smilax rotundifolia quaurangularis (Muhl.) Wood. 



Common in dry places about the borders of thickets or among 

 the low open growth covering sandy levels. Just in flower 



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In its extreme form this plant affords a pronounced contrast 



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determined whether it represents merely a state assumed by the 

 species in dry and sandy soils or is a derivative now so inde- 



