1905] Harper, — Coastal Plain Plants in New England 71 
which have such a distribution as above described, and are rare or 
absent in the intervening territory. Under each one the words pre- 
ceded by “west” refer to its range in the glaciated area, and those 
preceded by “south ” to its range in the coastal plain. It is taken for 
granted that their ranges in New England and north and east of there, 
as well as their habitats, are known to the reader. The ranges given 
have been compiled from several well known works, but are liable to 
the errors usually inherent .in compilations. These notes may serve 
however as a foundation for more accurate work in the future. 
Except where otherwise specified, these plants have all been 
observed by the writer in the coastal plain of Georgia (and about 
half of them in central Massachusetts also). Most species whose 
coastal plain range does not reach Georgia are not considered here. 
Woodwardia Virginica (L.) J. E. Smith. West to Michigan and 
northwestern Indiana, south to Florida, Arkansas and Texas. 
Lycopodium (species of the zmundatum group). In New England 
and elsewhere in the same latitudes Z. ¿nundatum is almost the sole 
representative of this group, but in the southern states there are 
three species, all confined to the coastal plain, except that Z. pinna- 
tum has been collected once in the Piedmont region of Georgia,’ and 
the other two have each been collected at least once in western 
North Carolina.” No member of this group is reported from Ten- 
nessee. 
Chamaecyparis thyoides (L.) B. S. P. West to eastern Indiana 
(S. Coulter), south to Florida and Mississippi. In the South it has 
a rather erratic distribution (apparently skipping Georgia com- 
pletely), but seems to be strictly confined to the coastal plain.3 
Potamogeton. ‘This genus is abundantly represented in the glaci- 
ated region, less so in the coastal plain, and almost wanting in the 
Piedmont region and mountains. . 
Echinodorus parvulus Engelm. West to Minnesota and Missouri, 
south to Florida and Texas (?).* 
Sagittaria gramínea Mx. West to Nebraska and the Dakotas, 
south to Florida, western Tennessee and Texas. 
1 See Bull. Torr. Bot. Club, 30: 294, 326. 1903. 
2 See Lloyd & Underwood, Bull. Torr. Bot. Club, 27 : 155, 157. 1900. 
3 See Torreya, 3: 122. 1903; and Pinchot & Ashe, Timber Trees and Forests 
of North Carolina, 120. 1898. 
* See Robinson, RHODORA, 5: 89. 1903. 
