166 BOTANICAL GAZETTE [MARCH 
A plant of S. cordata had some bracts with two pistils, and 
some with one pedicel bearing two pistils at its tip, but nearly all 
the bracts had the usual single pistil. No stamens were found 
upon this plant. Sections showed normal ovules and embryo 
development. 
A plant of S. petiolaris found in the spring of 1896 exhibits 
the most surprising variety of sports. On this plant were found 
both staminate and pistillate catkins, catkins with pistils from 
some bracts and stamens from others, also catkins in which two 
stamens and one pistil, or one stamen and one pistil came from 
the axil of the same bract. Sections of material from this plant 
revealed interesting monstrosities, which are almost endless in 
their variety. For the sake of comparison, a section of a normal 
pistil of the same species, drawn to the same scale, is given in 
fig. 78. Sections like fig. 83 were not uncommon. Externally 
this pistil seems perfectly normal, but at the base of the ovary 
there is a single ovule instead of the half-dozen or more which 
are expected in this species. The embryo sac shows a well 
developed egg apparatus and primary endosperm nucleus. A 
single erect microsporangium is borne upon a stalk which closely 
resembles the placenta which bears the ovules. In jig. 88 there 
is external irregularity in the position of the stigma. The ovules 
are normal, one having a perfect embryo with the usual amount 
of endosperm, and the other having a well developed embryo 
sac. The single microsporangium is not borne upon a stalk, but 
nearly upon the wall of the carpel. In fig. 79 there are four 
ovules at the base of the ovary, all with embryo sacs developed 
to the fertilization stage. At the upper part is an ovule placed 
transversely. The middle is occupied by four microsporangia 
of very different aspect, one being borne upon a long slender 
stalk, another just above it having a somewhat placental base 
and decidedly pointed apex, while one of those on the other 
side is borne on the wall of the carpel, and the other upona pla 
cental growth developed ata foldin the carpel. In fg. 82 there 
are two pistils upon a single pedicel, in one of which there is but 
a single poorly developed ovule, in the other two normal ovules 
