424 Farr on British Columbian Plants. 
C. Canadensis and C. Suecica. Material hitherto collected in 
this region has been reported as C. Canadensis. Many of 
the flowering shoots bear fully developed opposite pairs of 
leaves, but without trace of whorled leaves. In shape and size 
these approximate rather more to those of C. Canadensis, but 
not infrequently their bases are rounded so as to approach 
very closely those of C. Suecica. In diagnostic descriptions 
the leaf veins of C. Canadensis are said to be pinnate and 
this is generally true; in C. Swecica the veins are said to 
arise at or near the base of the leaf, but leaves are not 
infrequent that show marked pinnation; in the present form 
the veins occasionally arise near the base of the leaf. The 
flowers of C. Canadensis are described as greenish, those 
of C. Suecica purple. The present specimens conform to the 
latter description, and this has already been noted by Pursh, 
who says in respect to C. Canadensis “flowers purplish- 
white.”’ The stones of C. Canadensis are stated to be smooth, 
globose, a little longer than broad, those of C. Suecica are 
defined as flattened, channeled on each side and about as 
broad as long. The stones of the specimens now under con- 
sideration exhibit an intermediate condition, but approximate 
rather more to those of C. Suecica. 
In view of these marked variations, it seems quite reason- 
able to consider that the Glacier plants represent perfect 
transitional types in every detail from the two supposed 
species, and verify the wisdom of the observation made in 
the “Botanical Magazine,” No. 280, that Cornus Canadensis 
“is for the most part readily distinguished from Cornus 
suecica, by the leaves all growing in a whirl at the top of the 
stem, for the opposite pair about the middle are mere 
stipules ; Pallas doubts if they are not both varieties, and says 
the specimens he has seen from Kamschatka and Bering’s 
Island, exactly correspond with garden specimens from this 
country and native ones from Canada, but it is not very 
improbable that Cornus Canadensis may be found in these 
places as well as Cornus suecica; we have specimens of both 
