24 FLORA OF BURLINGTON AND VICINITY 



PONTEDERIACEAE. PICKEREL=WEED FAMILY 



HETERANTHERA R. & P. Mud Plantain 



H. dubia (Jacq.) MacM. Water Star Grass. Ponds and streams; rare. 

 Aug. Mouth of Winooski River, (Grout and Tracy). A small 

 form occurs on muddy shore, Burlington, (N. F. F.). 



PONTEDERIA L. PickEREL-weEd 



P. cordata L. Borders of ponds and slow streams; frequent. July, 

 Aug. 



JUNCACEAE. RUSH FAMILY 



JUNCUS (Tourn.) L. Rush. Bog Rush 



J. acuiiiiiiatus Michx. Sharp-fruited Rush. Wet meadows; rare. June- 

 Aug. Essex, (Jones). This was a proliferous form of the species. 



J. alpiuus Vill., var. iusiguis Fries. Wet gravelly shores of Lake Cham- 

 plain; rare. July, Aug. Shelburne, (Pringle) ; Burlington, (N. 

 F. F.). 



J. articulatus L. Jointed Rush. Wet grounds; rare. July, Aug. Es- 

 sex, (Jones); Colchester, (N. F. F.). 



J. brevicandatus (Engelm.) Fern. Moist places; frequent. July-Sept. 



J. bnfonius L. Toad Rush. Low grounds; common. June-Sept. 



J. Dudley! Wiegand. Damp grounds; occasional. June-Sept. 



J. eft'usus L. Bog Rush. Marshy grounds; common. July, Aug. 



J. nodosus L. Knotted Rush. Swamps and gravelly banks; frequent. 

 July, Aug. 



J. peloearpus Mey. Brownish-fruited Rush. Shores of Lake Cham- 

 plain; rare. Aug., Sept. Shelburne, (Pringle); Colchester, (N. 

 F. F.). 



J. tenuis Willd. Slender Rush. Fields; common and variable. June- 

 Sept. 



LUZULA DC. Wood Rush 



L. cainpestris (L.) DC, var. niultitlora (Ehrh.) Celak. Common Wood 

 Rush. Meadows and open woods; frequent. May, June. 



L. saltuensis Fern. Hairy Wood Rush. Woods and banks; frequent. 

 May. 



