Rhodora 
JOURNAL OF 
THE NEW ENGLAND BOTANICAL CLUB 
Vol. 5 September, 1903 No. 57 
THE DENTARIAS OF CONNECTICUT. 
Epwin H. Eames, M. D. 
IN a tract of rocky hillside woodland in Sherman, Connecticut, 
within half a mile of the New York state-line, there is a large colony 
of the daintily beautiful C/aytonia Caroliniana Michx., which Mr. 
E. H. Austin had enthused me to visit April 19, 1903, at a time when 
it was flowering abundantly. 
With this and other interesting species were a few plants of Den- 
taria diphylla Michx., with swelling flower-buds, together with others 
in the same condition but strikingly different in appearance. Vari- 
ously situated in the damp humus of these cool woods, on rocks and 
in deeper accumulations of soil along the hillside, extending down a 
more open northerly-facing slope, nearly to the rapid waters of the 
Housatonic River, this peculiar plant was found in quantity at alti- 
tudes varying from 405 to 445 feet. 
The stem-leaves were opposite as in D. diphylla, but their leaflets 
at once arrested my attention: distinctly narrower, more pointed and 
incisely-toothed, in marked contrast with the accompanying much 
broader and still more deeply and irregularly incised or somewhat 
lobate basal leaflets, they were distinctive at a glance. 
When the superficial rootstocks, at times directly upon the surface 
and green or purple in varying degree, were uncovered, they were 
found to be composed of four or five to eleven or more interrupted, 
distinctly fusiform, toothed and tuberculate segments of annual 
growth and wholly unlike those of its companion species. 
In flowering specimens kindly gathered for me by Mr. Austin, on 
May 3, and in others which we both collected one week later, the distinc- 
tions noted were strengthened by an additional one of equal interest : 
