346 BOTANICAL GAZETTE ; [ocToBER 
while the later (superior) leaves bear more or less villous hairs 
“spreading in all directions,” especially on the upper surface if the 
latter is not glabrous even when young, as is mostly the case with 
the young (first) leaves of the flowering branchlets. I have been 
unable to distinguish different forms by the amount or the character 
of the pubescence, and it is often difficult to determine properly 
young flowering specimens in the herbarium. 
S. cordifolia is a widely distributed and variable species, its 
range extending from southern Greenland (about the 67th parallel) 
and Labrador (from the vicinity of Nachvak southward to the 
Strait of Belle Isle) westward to the western shores of the Hudson 
Bay (in var. aira) and southward to the Mingan Islands and the 
western Gaspé Peninsula,’ northwestern Newfoundland, and in 
var. Macounii to the Bonne Bay region in western Newfoundland, 
but it is not yet reported from the Bay of Islands or the Blomidon 
range there. The forms of Greenland which I take for S. cordifolia 
are discussed under S. anamesa. 
In Labrador it is often represented by the f. atra (Rydbg.), nov. 
forma, which seems to differ from the type only in its more oblong 
leaves which are acuter at both ends. The “‘turning black in dry- 
ing”’ of the leaves mentioned by RYDBERG seems to me no character 
of taxonomic value because it is too often only a result of neglect in 
the press. I shall give an enumeration of the specimens referable to 
f. atra in my final book. At present I wish to draw the attention of 
collectors to another form for which I propose the name f. hypo- 
prionota’ noy. forma, because it chiefly differs from the type by its 
“‘foliis ex parte pl.m. serrato-denticulatis”; otherwise it seems to 
vary in the same manner as the type, being sometimes more or less 
prostrate, sometimes an erect shrub up to 1 m. in height. I refer 
to it the following specimens: 
LaBRADOR: Straits of Belle Isle: Blanc Sablon, limestone and calcareous 
sandstone terraces, by brook, August 1, 1910, Fernald and Wiegand (nos. 
7 Derived from 474, somewhat, and rpiovwrés, serrated. 
