Bulbostylis CYPERACEAE Scirpus 



Var. isopoda Fernald. 



Rare: sand back of dunes, 63^ mi. n. of Ocean City (Wo), 

 R. R. Tatnall, 4653, 4 Aug. 1940 (T). The only known col- 

 lection. 



Var. crebra Fernald. 



Frequent on railroad ballast and other sterile soil. Coastal 

 Plain. Late Aug., Sept. 



Fimbristylis Vahl. 

 F. castanea (Mx.) Vahl. 



Frequent in salt and brackish meadows and marshes. Coastal 

 Plain. Mid-July to Sept. 



F. caroliniana (Lam.) Fern. {F. puberula (Mx.) Vahl. See Rhodora 

 42, 246. 1940.) 



Frequent in salt marshes, Coastal Plain. July to Sept. 



F. Baldwiniana Torr. See Rhodora 37, 397-398. 1935. 



Rare; known from serpentine soil of New Castle County, and 

 sandy river shores of Wicomico County; no recent collections. 



F. autumnalis (L.) R. & S. 



Frequent in fields, pond borders and dune hollows, Piedmont 

 and Coastal Plain. Aug. to Oct. 



Scirpus L. Bulrush. 

 S. planifolius Muhl. 



Infrequent; on rocky wooded slopes along Brandy wine and Red 

 Clay Creeks (NC) ; not recently collected. April, May. 

 A northern species. 



S. subterminalis Torr. 



In water, Sussex and Wicomico Counties; not recently collected. 

 July to Sept. 



A northern species. 



S. Purshianus Fern. (S. debilis Pursh. See Rhodora 44, 479-483 

 1942.) 



Infrequent; shores of ponds and streams of the Coastal Plain. 

 Mid-Aug. to early Oct. 



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