130 PITTONIA. 
tion as a whole abundantly confirms the species. The reni- 
form cut of the lower leaves is universal, in some even lack- 
ing the cuspidate point. In a specimen from Center City, 
June, 1892, by B. C. Taylor, the two basal leaves measure 
more than four inches in breadth and but two anda half in 
length ; and in many more of the specimens these dimensions 
are approached. The pubescence ascribed to the species is 
as universal. Young plants just beginning to flower, show 
the foliage even hoary-tomentose beneath. The rootstock 
does not seem to differ from that of V. Canadensis. 
23. V. LABRADORICA, Schrank, Regensb. Denksch. i. part 
2, p. 12. Some eight sheets of this, collected by Ballard, 
Sandberg and Sheldon, all from a rather limited and south- 
easterly district, indicate that the rolling country, more or 
less wooded, but with deciduous trees only, along the Misis- 
sippi, is the habitat of this species. From the westerly and 
distinctively prairie regions of the State there are no speci- 
mens; and we should expect none. 
In the Metaspermx the species was listed as V. sylvestris, 
Lam. 
24. V. SUBVESTITA, Greene, Eryth. v. 39. This masque 
rades in recent books as “ V. arenaria, DC.,” a plant with 
pale-blue or nearly white flowers on peduncles three or four 
times as long as the leaves, and nodding, with also an obtuse 
spur; whereas in our North American plant the corollas are of 
a rather deep purple, as erect as those of any violet, and are 
borne on peduncles little or not all exceeding the leaves, the 
spur being usually acutish, sometimes almost hooked. 
There are two sheets of V. subvestita from Two Harbors, 
on Lake Superior, by E. P. Sheldon, June, 1898; three from 
Carlton Co., in about the same region, by Sandberg, May 
and June, 1891, and a fourth by Sandberg, Itasca Co., 1891, 
