74 
Notes on Sanguinaria Canadensis. 
Plate LXVIL 
In 1884 I published a series of notes on the morphology of a 
few of our most common species. A part of those on the May 
apple I found soon after had already been published in an earlier 
number of the Botanical Gazette, by Prof. Thos. C.. Porter. 
Among the notes then sent were a series on the blood-root. 
The drawings, however, were accidentally lost by the editor, and 
the notes returned to me at my request. The present drawings 
have been made from dried specimens, and this will account in 
part for their want of elegance. : 
The blood-root, Sanguinaria Canadensis, has a phyllotaxy 
of the % kind. Each year’s growth begins with a few scales” 
arranged on alternate sides of the stem; these are followed by a 
larger and then a smaller leaf, the rest of the axis being trans- 
formed into a flower, morphologically speaking. In the axis of 
the smaller leaf is found the bud which will continue next year’s 
growth; in other words, sympodial growth occurs regularly 
(Fig. 1). 
Frequently the axis of the smaller leaf contains a second 
flower; this shows its nature as a transformed branch, by bearing 
at the base on one side a small leaf, which subtends the bud for 
next year’s growth (Fig. 11). Occasionally this secondary flower- 
stalk bears at its base even two leaves, the bud being then ~ 
situated in the axil of the smaller leaf (Fig. 111). 
The flowering axis may bear a bract half way up to the 
flower, subtending a second flower-stalk. In this case the scale 
seems to be opposed to the smaller leaf beneath (Fig. Iv). In 
the most complicated case known, the plant bears three flowers 
(Plate LXVU, Fig. v). One flower represents the terminal axis, 
another is in the axis of the smaller leaf. The second flower- 
stalk has at its base on one side a leaf subtending the leaf bud, 
and opposed to this, half way up the flowering stalk, is a bud 
subtending a third flower. At least six specimens showing this 
method of branching were found by Mr. W. B. Werthner and 
myself during the course of a day in the spring of 1884. 
The sepals (2) may be more or less united on one side, in 
some cases complete cohesion taklng place. There are also cases 
. 
