Geographical Distribution of Indigenous Plants. 63 
| ly to America, being found in only a few places on the coast of Europe, 
where they seem to have effected a chance lodgment.’’* 
The next list, No. IV., includes all the plants, as far as known, com- 
mon to Europe and the Northeast United States, not enumerated:in the 
three preceding 
tion. The list is as follows: 
and nearly all of them require some special observa- 
List No. LV. 
Myosurus minimus. 
Cardamine hirsuta, var. sylvatica. 
Draba verna. 
Subualaria aquatica. 
Sagina apatela. 
Sagina procumbens. 
Lepigonum medium, var. melano- 
carpa. . 
Oxalis corniculata, var. stricta. 
Potentilla argentea. 
Circzea lutetiana. 
Lythrum hyssopifolium. 
Centunculus minimus. 
Scrophularia nodosa. 
Salicornia virginica. 
Salicornia frutivosa, var. ambigua. 
Salsola kali. 
Polygonum erectum. 
Polygonum dumetorum, var. scan- 
dens. 
Rumex maritimus 
Castanea vesca, var. americana. 
Convallaria majalis. 
Cyperus rotundus, var. hydra. 
Carex muricata. 
Carex limula. 
Carex levigata. 
Hordeum pratense. 
Myosotis arvensis. 
Taking the first on the list, Myosurus minimus, we find it has a 
scattered distribution. Found from Illinois to Kentucky, thence south 
and west;+ Florida and Georgia. It is given in catalogues of Plants 
of Indiana,§ of Iowal| (at Davenport), and in Kansas.4]_ It also grows 
in Oregon, along with the only other species, M@. aristatus, which is 
also foundin Chili.** In Europe, it does not extend north of latitude 
55 deg.tt Prof. Gray considers that it may have been introduced in 
our district,{{ and even if not it may be considered as coming 
under those species referred to in List No. II., as not able to live at 
the north now, though it may have done so when the climate was 
milder. | 
Draba verna grows in “sandy waste places and road sides. Not 
found north of Lower Canada,’’§§ and perhaps not so far north, for it 
is not given in catalogues of Plants of Buffalo nor Chautauqua, N. Y., 
* Gray, Am. Jour. l.'c., p. 66. 
+ Gray’s Manual, p. 44. 
+ Am.:Jour. J; .¢., vol. xxili., p. 381. 
2 Bot. Gazette, Feb., 1881. 
|| Arthur’s Catalogue. 
{ Carruth’s Catalogue. 
** Am. Jour., vol. xxiii., p. 382. 
tt Watson, lJ. c., p. 187. 
tt Proceed. Am. Ass. Ady. Sci., 1872, appendix. 
22 Gray’s Manual, p. 72. 
