220 
Cardamine parvifiora, L. Sp. Pl. Ed. 2, 914 (1763). 
In the ‘‘ Transactions of the New York Academy of Sciences” 
ix. 8 (1889), I have maintained that the plant described by Dr. 
Gray (Man. Ed. 5, 67), as Cardamine hirsuta, var. sylvatica, is 
specifically distinct from C. hirsuta, and referred it to C. flexuosa, 
With., a European plant. I am satisfied now, as I was then, that it 
is distinct from C. hirsuta, but after a study of a long series of | 
European specimens at Kew and the British Museum, | am 
equally satisfied that it is not C. flexuosa, but is C. parviflora, of 
which I have seen the original specimen in the Linnaan Herbar- 
ium. The equivalency of our plant with the European is noted 
by Watson and Coulter (Gray, Man. Ed. 6, 65). This species 1s 
evidently of northern range, occurring from Virginia and 
Pennsylvania to Quebec (according to Macoun) and Western 
Ontario. 
As I now understand these plants there is still a third eastern 
species, the Cardamine Virginica of Michaux. (Fl. Bor. Am. ii. 
29, 1803), and C. hirsuta var. Virginica, T. and G. FI. N. Ail, 
85, but not C. Virginica, L. This grows in sandy, open, | 
moist soil dlong the Atlantic coast. It is very much branched 
at the base, forming numerous, ascending or erect leafy stems six | 
inches to a foot high, the leaves nearly erect and divided Hite 
numerous linear or linear-oblong, obtuse or obtusish seg- 
ments, those of the lower leaves broader than those of the uppe! 
as in all this group. The fruiting pedicels are ascending and the 
pods strictly erect. The plant is apparently glabrous throughout. 
I have it from Middletown, Conn., “on sandy fields subject to be 
overflowed by the rivers” (J. Barratt), Huckleberry Island, Long 
Island Sound, (Mrs. Britton), and collected it myself on April 
16th of this year at Portsmouth, Va., where it was in full fruit 
and flower, and impressed me by its very different appearance © : 
from any form with which I was familiar. As Michaux’s name — 
for the plant is preoccupied by the Linnzan, I propose for it 
Vv CARDAMINE ARENICOLA. 
Arabis Virginica (L.) . 
Cardamine Virginica, L. Sp. Pl. 656 (1753) no # 
Herbarium. 
