1916] McAtee — Winter Flora of Muskeget Island 95 



capillare. On a single refuse heap near a fisherman's house were 

 found the only specimens of mullein, wild carrot, Raphanus raphanis- 

 trum, Poa pratensis, Triticum sativum, and Festuca rubra, and only in 

 the vicinity of fishing shacks were Chenopodium album and Convol- 

 vulus septum obtained. 



The vascular plants found on Muskeget Island belong to 23 families 

 of which 16 are represented by only one species each; while the 

 Rosaceae have 6 species, the Chenopodiaceae and Compositae 8 each, 

 and the Gramineae 9 species. 



Such is the general summary of the winter flora of a mile-wide and 

 isolated sand patch twenty miles off the southern shore of Cape Cod, 

 Massachusetts. 



LIST OF SPECIES. 1 

 POLYPODIACEAE. 



Aspidium thelypteris (L.) Sw.— The only fern present; abundant 

 in fresh water marshes; covered with fruit dots. 



TYPHACEAE. 



Typha latifolia L. — Numbers present in a few of the fresh water 

 marshes. 



NAIADACEAE. 



Zostera marina L. — Exceedingly abundant in shoal waters sur- 

 rounding Muskeget. 



GRAMINEAE. 



Panicum capillare L. — Only in a little garden; mature fruit. 



Agrostis perennans (Walt.) Tuckerm. — The long, thin culms 

 growing up among shrubs in the fresh water marshes. 



Ammophila arenaria (L.) Link. — The most abundant plant; 

 mature fruit. 



Spartina glabra Muhl. var. pilosa Merr. — The outermost 

 emerged plant of the salt marsh; mature fruit. 



1 Identification of plants mentioned in this list was kindly made by Professor M. L. Fernald, 

 with the exception of 3 species of grasses named by Professor A. S. Hitchcock. 



