1905)  Harper,— Coastal Plain Plants in New England 73 
south to Florida and Alabama (but apparently not known between 
Delaware and Georgia). 
Scleria verticillata, Muhl. West to Michigan and Indiana, south 
to Florida and Texas. Also in Mexico and the West Indies. 
Lemna. This genus has about the same distribution in America 
as Potamogeton. 
Orontium aquaticum, L. West to the Pocono plateau of Pennsyl- 
vania, south to Florida, Missouri and Texas. Also rarely in north- 
west Georgia (Harper) and adjacent Tennessee (Gattinger). 
Xyris. The North American species are nearly all confined to 
the coastal plain,’ except X. fexuosa and X. montana, which are 
rather widely distributed in the glaciated region. 
Eriocaulon. Represented in New England only by Æ. septangulare, 
With., which ranges west to Minnesota, and south in the coastal 
plain to Florida and Mississippi (but it is not definitely known in 
the States between New Jersey and Georgia). The other North 
American species seem to be confined to the coastal plain, except 
that Æ. decangulare is known from a few stations in the mountains of 
North Carolina and Tennessee. 
Poutederia cordata, L. West to Minnesota and Saskatchewan, 
south to Florida, Arkansas and Texas. Also at one station in Middle 
Tennessee (Gattinger). 
Juncus scirpoides, Lam. West to Indiana, south to Florida, Arkan- 
sas and Texas. 
Tofieldia. Represented in eastern North America by two species 
in the glacial region (one of them also occurring in the mountains of 
North Carolina) and two others in the coastal plain, one ranging 
from New Jersey to Louisiana and the other known only from the 
Carolinas. 
Gyrotheca tinctoria (Walt.) Salisb. Seems to be confined to the 
coastal plain, ranging from New England to Florida and Mississippi. 
Also in Cuba. 
Habenaria ciliaris (L.) R. Br. West to Michigan and northern 
Indiana, south to Florida, Arkansas and Louisiana. Also rarely in 
Northwest Georgia (P. Wilson), northern Alabama (JZohr), and East 
Tennessee (Gattinger). 
Habenaria blephariglottis (Willd.) Torr. West to Minnesota, south 
1 See Bull. Torr. Bot. Club, 30: 326. 1903. 
