240 Rhodora [DECEMBER 
A. canadensis from the South and West together with much new 
material from the same region. "The result of this study may throw 
some further light on the status of A. alabamensis Britton. It seems 
now probable that a certain amount of woolliness on the summit of 
the ovary must be admitted among the allowable variations of A. 
canadensis without, however, constituting a distinct variety. In the 
North the leaves of 4. canadensis are usually acuminate or sub- 
acuminate and sharply toothed, while in the Southwest (in Missouri 
principally) they are often, but not always, blunter, broader and more 
shallowly toothed, as well as sometimes nearly glabrous. Traces of 
the wool upon the ovary were found in about one-fourth of all sheets 
representing each leaf-form. If this variation in wool accompanied 
one or the other variation in leaf-form, a varietal designation would 
be justified, but under the circumstances such a designation would 
seem in no wise warranted. Since no other species with woolly 
ovary is known from the Southwest, it would seem necessary to 
assume a certain amount of variability in A. canadensis with respect 
to this character of the ovary, rather than a hybrid origin of the 
character. The wool is rarely more than a trace, but in one specimen 
from Missouri it is moderately dense. The type specimen of A. 
alabamensis, therefore, would seem to be simply a normal example 
of this tendency in A. canadensis. 
The leaves of A. oblongifolia have proved more frequently acute 
(but not acuminate) than was at first realized. Therefore, the reader 
should not be misled by the bluntness of the leaves selected for the 
illustration in the paper above cited. ; 
The known range of A. sanguinea in Massachusetts has heretofore 
not included the region east of the Connecticut River, and, since this 
species is, so far as known, a calciphile, an extension of the range into 
the generally non-calcareus eastern portion of Massachusetts was 
not expected. It was, therefore, very interesting to find in the private 
herbarium of Mr. C. H. Knowlton a specimen of A. sanguinea from 
Groton, Mass. Mr. Knowlton states that several other plants which 
are usually calciphile, as for example Potentilla fruticosa, were found 
near by. An inspection of Dame and Collins’ Flora of Middlesex 
County shows that among plants whose distribution is usually re- 
stricted to calcareous regions, the following have been found at Groton 
or on the same geological formation in the immediate vicinity: Phe- 
gopteris hexagonoptera, Asplenium acrostichoides, Spiranthes lucida, 
