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Hood’s pond; Topsfield, etc. Scarce inmanyplaces. ‘Discovered — 
(1823) by Mr. Benj. D. Greene, growing plentifully in a pond at 
Tewksbury” (Bigelow’s Fl. Bost., 2d ed., 1824). This was the 
locality from which the species was originally described by Dr. 
Bigelow. 
Juncus acuminatus, Michz., var. legitimus. (Gray’s Manual.) 
Lanesville, West Newbury, etc. Often found bearing proliferous 
heads. The typical form is not found here. 
Juncus articulatus, L. 
West Newbury, Salem Great Pastures, and also at Wenham (W. 
P. Conant). Found on wet banks. 
Juncus Canadensis, J. Gay, var. longicaudatus. (Gray’s Man- 
ual.) 
A variable species. Moist places. Common. 
Var. coarctatus. (Gray’s Manual.) 
In situations similar to the last. Common. 
PONTEDERIACEA, 
(PICKEREL-WEED FAMILY.) 
Pontederia cordata, Z. (PICKEREL-WEED.) 
Ponds and streams. Common. 
Schollera graminea, Willd. 
Pleasant and Wenham ponds, Wenham, and a few other localities, 
but not yet noticed in flower. 
XYRIDACEA. 
(YELLOW-EYED-GRASS FAMILY.) 
Xyris flexuosa, Muhl., Chapm. 
Shores of ponds. Not rare. 
Var. pusilla. (Gray’s Manual.) 
Crooked pond, Boxford; Chebacco pond. Not so abundant as the 
last. 
ERIOCAULONACE. 
(PIPEWORT FAMILY.) 
Eriocaulon septangulare, Withering. (PIPEWORT.) 
Common on the shores of ponds, and often in water two feet deep, 
the stems lengthening to accommodate themselves to the increased 
depth. 
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