58 Bicknell : Ferns and flowering plants of Nantucket 



trees are perhaps not over 8—10 feet in height. A considerable 

 part of the growth is so densely massed together as to form an 

 impenetrable thicket. Smaller trees away from the main body 

 show some tendency of this foreigner to extend its foothold. 



JUNIPERUS VIRGINIANA L. 



Abundant on Coatue, extending into a long stretch of cedar- 

 barrens towards Great Neck ; scattered trees on the north shore 

 and along the east side of the harbor ; fields south of Squam 

 towards Quidnet and west of Sachacha ; scarce towards the south 

 and southeast and wanting in most of the west and southwest 

 quarters. 



TYPHACEAE 



TYPHA LATI FOLIA L. 



Common. Both this species and T. angustifolia 



Miacomet 



but nowhere were the two seen actually growing together. 



■ 



Typha angustifolia L. Abundant 



SPARGANIACEAE 



Sparganium eurycarpum Engelm. 



Locally common, and fruiting well ; matures earlier than the 

 two following. 



Sparganium androcladum (Engelm.) Morong. (S. lucidum 



9: 87. 1907.) 



A 



the northwest side of Maxcy's Pond, 1907. Largest fruiting 

 heads 2.5-3 cm - in diameter; stigmas 2-4 mm. long. In a small 

 pool east of Maxcy's Pond, which was partly filled with this bur-reed 

 in full flower and fruit August 12, 1904, only a few sterile plants 

 were growing three years later, its place having been taken by a 

 dense growth of Pontedcria. Recorded from Almanac Pond. 



* Sparganium americanum Nutt. 



Frequent or common, occurring in nearly all quarters of the 

 island. Much of the fruit was not mature even after the middle 

 of September. 



