PLANTS COLLECTED OR OBSERVED. 513 



ANG-IOSPERMAE. 



M( )NOCOTYLEI)ONEK. 



TYPHACEAE. 



Typha angustifolia L. Common in fresh-water river marshes (Nos. 1349, 1518, 



1522). 

 Typha latifolia L. More abundant than the preceding, in fresh and brackish 



marshes. 

 Sparganium androcladum (En-elm.) Morong. In the cool, shaded water of 

 Washington Ditch. Dismal Swamp, July 14 (No. 1627). 



NAIADACEAE. 

 Potamogeton lonchites Tnckerm. With Sparganium androcladum (No. 1020). 



ALISMACEAE. 



Echinodorus radicans (Nutt.) Engelm. In shaded swamp, Edenton, N. C, 



July 30 (No. 1915). 

 Sagittaria graminea Michx. In an open, grassy bog. Newl>ern, N. C. , August 1, 



(No. 1952). 

 Sagittaria lancifolia L. Common in fresh-water river marshes (No. 1359, 1713, 



1717, 2011). 



VALLISNERIACEAE. 



Philotria canadensis (Michx.) Britton. Bottom of Nansemond River, near 

 Suffolk (No. 1097). An unusually small, slender, short-leaved form. 



POACEAE. 



Erianthus contortus Ell. Common along ditches, in fields, and at the edge of 



woodlands, near Norfolk and Portsmouth (Nos. 1741, 2398). 

 Erianthus saccharoides Michx. In open marshes, especially on the border of 



the Dismal Swamp (Nos. 2140. 2354). Occasional in drier soil. 

 Andropogon argyraeus Schult. Dry soil at roadsides (No. 2149). 

 Andropogon elliottii Chapm. Dry soil at roadsides and at the edges of wood- 

 lands, near Northwest (No. 2383); a slender form approaching var. gracilior 



Hack. 

 Andropogon glomeratus (Walt.) B. S. P. In open, boggy places; at Ocean View. 

 Andropogon scoparius Michx. Common in dry, sandy soil, at roadsides and in 



fields. 

 Andropogon sorghum halepensis (L. ) 1 lack. Persisting as a weed in cultivated 



land at Wallaceton, Norfolk County. Introduced. 

 Andropogon tetrastachyus Ell. In a swale at Cape Henry, October 5 (No. 21 29) . 

 Andropogon virginicus L. Abundant in old fields. 

 Paspalum angustifolium Le Conte. In moist, sandy soil along the Dismal 



Swamp Canal, Wallaceton, Norfolk County, July 21 (No. 1785). 

 Paspalum dasyphyllum Ell. In pine woods on Lynnhaven Bay, July 27 (No. 



1850). 

 Paspalum distichum L. Brackish marshes near Virginia Beach, August 4 (No. 



2028). 

 Paspalum floridanum Michx. Dry soil in an old field. Kempsville, Princess Anne 



County, October 7 (No. 2108). 

 Paspalum floridanum glabratum Engelm. In dry fields near Lynnhaven Bay, 



October 3 (No. 2142.) 



