184 Rhodora [OCTOBER 
ME eT I N 
= = > = O 
RANUNCULACEAE 
Ranunculus sceleratus L. : +}—}—!+]/+]+ 
n septentrionalis Poir. +++ + 
Thalictrum confine Fernald À + + 
4 dasycarpum Fisch. & ; 
en. iy. eee + 
, dioicum L. . +I+I+Ii+I+I+ 
" polygamum Muhl. H+I+I+I+I+I+ 
g revolutum DC. +I ++ 
Trollius laxus Salisb. . | + 
| 
INTRODUCED SPECIES. 
Certain introduced plants of very limited occurrence are omitted 
from the list. These are: Anemone nemorosa L., collected by J. H. 
Sears at Danvers, Mass.; Clematis florida Thumb. from Woodbridge, 
Conn. (Ruopora xix. 224, 1917); Delphinium Consolida L., a grain- 
field waif at Middlebury, Conn. (E. B. Harger, see Ruopora xviii. 
169-176, 1916); Nigella damascena L. from Biddeford, Me., and 
Bridgeport, Conn.; and Zanthorhiza apiifolia L’Hér. introduced at 
Concord, Mass. 
Aconitum Napellus L. is persistent and spreading at Pembroke, Me. 
(M. L. Fernald), Willoughby, Vt. (G. G. Kennedy) and at Newfane, 
Vt. (L. A. Wheeler); Ranunculus Ficaria only at Cambridge, Milton 
and Hingham, Mass. 
Aquilegia vulgaris is frequently persistent around old places in 
southern New England, but further north it occasionally spreads to 
fields and woods and becomes an intimate part of the flora. This is 
especially true in Aroostook county (M. L. Fernald) and at Cutler, 
Me. (G. G. Kennedy), Barton, Vt. (S. N. F. Sanford) and Newport, 
Vt. (C. H. Knowlton). 
Ranunculus acris seems to have found a footing in moist soil where- 
ever the original native vegetation has been removed. R. bulbosus 
is a plant of dry fields, abundant in southern New England, but it is 
not common in Vermont nor in inland New Hampshire. It is found 
in York County, Me., at Portland, around Bangor, at South Deer 
Isle and Dennysville, and also inland at Skowhegan. R. repens and 
