1899] Fernald, — Plants of the Crowfoot family 51 
Anemone riparia. Plant comparatively slender, 3 to 9 dm. high, 
glabrate or loosely pubescent especially below on the petioles and at 
the base of the involucre: leaves thin, 3-divided, the cuneate-lanceo- 
late or cuneate-ovate divisions unequally cleft into coarsely and sharply 
toothed segments, the lateral divisions very deeply cleft: involucre 3- 
leaved, subtending the 1 to 5 slender elongated naked or involucellate 
sometimes proliferous appressed-silky peduncles: sepals unequal, oval 
or obovate, obtuse or acutish, 1.5 to 2 cm. long, thin, clear-white, 
canescent-tomentose or glabrate without: heads of carpels oblong, 
short-cylindrical, r.5 to 2 cm. long, scarcely 1 cm. thick; the slender 
persistent styles ascending or appressed much as in A. cylindrica. — 
A. cylindrica, var. alba, Oakes, Hovey's Mag. vii. 182. A. virginiana, 
var. alba, Wood, Class Book, 203. — Abundant on rocky banks and in 
the crevices of wet calcareous-slate ledges along the Piscataquis River, 
Dover, Maine, collected by the author June 25, 1894, August 31, 1897 
and June 11, 1898, no. 2201; also collected at Dover by Geo. B. 
Fernald, June, 1896. Besides the Dover material, specimens from the 
following stations have been examined: Magdeleine River, Gaspé, 
Quebec, August 5, 1882 (John Macoun, no. 932) ; shore, Lake St. John, 
Roberval, Quebec, July 20 1892 (G. G. Kennedy) ; Restigouche Co., 
New Brunswick, August, 1867 (J. Fowler); along the St. John River, 
Fort Kent, Maine, 1881 (Kate Furbish); rocky banks Aroostook 
River, Fort Fairfield, Maine, July 4, 1893, no. r, ledges by Medux- 
nakeag River, Houlton, August, 1897, river-cliffs by the Penobscot, 
Veazie, September, 1897, and in seepy open ground, Foxcroft, June 11, 
1898 (M. L. Fernald) ; rocky banks of the Androscoggin, Gilead, 
Maine, August, 1897 ( Kaze Furbish) ; abundant about Willoughby Lake, 
Vt., June 22, 1892 (G. G. Kennedy), June 5, 1895 (J. R. Churchill) ; 
on rocky ledges, Castleton, Vermont, 1829 (J. W. Robbins) ; also re- 
ported by Robbins from “ Burlington, and other places in Vermont, 
also in Uxbridge, Mass.” ; western New York (Asa Gray) ; reported 
by Professor Peck from Sullivan County, New York. 
Another common northern New England plant of the Ranun- 
culaceae, which is not described in the standard works upon that group, 
and which seems to have been nowhere distinguished in print, is a 
slender flexuous plant closely related to Ranunculus abortivus, L. 
Aside from its more flexuous habit the plant is quickly recognized, 
especially in the mid-summer state, by its glossy-green orbicular radical 
leaves, which generally have nearly or quite closed sinuses. ‘This plant, 
