Contributions to the Flora of Long Island, New York 

 Sixth Paper* 



William C. Ferguson 



All the plants listed in this paper, at every locality cited, 

 were collected by the writer, mostly in the seasons of 1928-29. 

 There are a few exceptions to this of plants not before recorded 

 in these papers, and also some new localities for rare plants listed 

 in former papers. These records are restricted to plants that in 

 the writer's experience are rare on Long Island. Duplicates of 

 most have been deposited in public herbaria. 

 Sparganium and Lemna were named by Dr. P. A. Rydberg. 

 Ciiscuta by Dr. T. G. Yuncker. 

 Gramineae by Mrs. Agnes Chase. 

 Carex by Mr. K. K. Mackenzie. 



Juncus Dudleyi, seciindiis, dehilis by Mr. F. V. Coville. 

 Eleocharis palustris group by Dr. M. L. Fernald, who has just 

 published a revision of this group in Rhodora, April, 1929. 



All doubtful plants by the staff" of the New York Botanical 

 Garden. The writer gratefully acknowledges his appreciation of 

 this generous aid. 



SPARGANIACEAE 

 Sparganium eurycarpum Englm. Rare in swamps, South Jamaica. 

 Sparganium .acaule (Beeby) Rydbg. Rare in wet borders of streams. Free- 

 port, Merrick, Seaford, Massapequa, Amityville, Babylon. 

 Sparganium diversifolium Graeb. Rare in wet borders of streams and 

 swamps. Baldwin, Seaford, Amityville. 



GRAMINEAE 

 Paspalum circltlare Nash. Rare in meadows. Oakdale. 

 Panicum lucidum Ashe. Rare or occasional in sphagnum bogs and swamps. 



Meadowbrook, Ronkonkoma, Freeport, Seaford, Laurelton, Bellmore, 



Brookhaven, Cold Spring Harbor, Babylon, Massapequa. 

 ZiZANiA palustris L. In water. Rare and local; very large colonies at Sayville 



and Brookhaven. Small colonies at Flushing, South Jamaica, Bayport. 

 Stipa avenacea L. Rare or occasional in dry woods. Easthampton, North 



Sea, Hither Woods, Montauk, Sag Harbor, Oakdale, Wyandanch. 

 Muhlenbergia foliosa Trin. Rare in damp meadows. Fresh Meadow Road, 



Flushing. 



* Previous papers in this series appeared in Torreya 22: 43-49, 1922. 

 Bull. Torey Club 51: 177-201, 1924; 52: 133-136, 1925; 53: 303-308, 1926. 

 Torreya 28: 45-51, 1928. 



