Bicknell: Ferns and flowering plants of Nantucket 481 

 Scirpus validus Vahl. 



Infrequent; Shawkemo, along a brackish creek; pool in 



comet Pond. 



Mia 



Spikes just appearing June 7 ; fully mature August 

 16, 1906. Spikes ovoid to ovoid-oblong, 5-6 mm. long; achene 

 about 1.5 mm. long, 1-1.25 mm. wide. 



Wats 



M 



Common in Hummock Pond in water off the shore. Agrees 



x , — , _. 1904) 



and matches well with the common plant of the St. Lawrence 

 wver about Alexandria Bay. The Nantucket plant is the form 

 with dark brown spikes, not over 10 mm. long, borne in capitate 

 c «sters. Scales much longer and larger than in 5. validus ; 

 achene 2-2.25 mm. long, 1. 50-1.75 mm. wide. Spikelets just 

 appearing June 7; fully mature August 15, 1906. 

 Scirpus paludosus A. Nelson. 



Common in saline soil, especially about the south shore ponds. 

 Relets beginning to app 



Surpus robustus Pursh. 

 A luxuriant growth of this rush completely filled a wet depres- 

 among lumber piles near the old wharves, Aug. 15, 1906, 



J 



oc 



abu 



u Py»ng perhaps half a square rod ; the plants were fruiting 

 antly and were of unusual size, some being seven feet tall. 

 r e P tem ber, 1907, the colony had been much disturbed by a 



gement of the lumber and in June, 1908, only a few plants 

 s .' ' none being yet in flower. Nothing was seen of this 

 es e,s ewhere on the island and its situation near the wharves 

 ( ggests that »* may have been introduced. 



c 'Rpus Rubrotinctus Fernald. 



quent in the town region. In great abundance in a low 

 app nCar the " Creeks >" where it was first observed Aug. 1 5, 1906, 

 from 1° a second growth after mowing, since the field was green 



e tu fts of basal leaves, yet no stems could be found ; damp 



field 



lot 

 in 



*° u th side of the town ; borders of Lily Pond ; at several places 

 am P fields west of the town and about Millbrook Swamp. 



^■yta Ml flower by June , 5. 



Pus cvperinus (L.) Kunth. 



\ 



