to them, and the third a branchlet in its axil. The short 
shoots produce only two leaves in each year; these leaves 
are nearly opposite, and each has a branch or bud in its axil; 
the shoot itself may end either in a tendril, which soon dis- 
appears, or ina cyme. Three combinations are met with as 
regards the axillary branches. There may be a cyme in 
each axil; or there may be a cyme in the axil of the lower 
and a long shoot in that of the upper leaf; or, finally, there 
may be a vegetative bud in the lower axil, which will con- 
tinue the growth of the short shoot in the following season, 
and a cyme in the upper. ‘Trifoliolate leaves are character- 
istic of young plants; in this condition P. tricuspidata bears 
a superficial resemblance to the juvenile state of the Poison 
Ivy, Rhus Toxicodendron, and recently a good deal of 
unnecessary alarm has been caused by the confusion of the 
two ina popular article. The plant now figured is quite 
harmless, and is readily distinguished by its leaves being 
mostly simple; the Rhus never has simple leaves. P. 
tricuspidata is most easily cultivated, and will thrive in 
almost any soil. Propagation is effected by means of 
cuttings placed in gentle heat. The young plants should 
be grown in pots until planted out in permanence, as they 
do not transplant well. 
Drscriprion.—Shrub, climbing by means of short, much- 
branched, leaf-opposed tendrils with discoid viscous tips ; 
twigs of two kinds, long with several leaves and short with 
2 nearly opposite leaves. Leaves polymorphic, cordate and 
5enerved at the base, rather coarsely crenate-serrate, the 
_ teeth usually rounded, mucronate, less often acute, glabrous 
and shining above, finely puberulous on the nerves beneath, 
those of the long shoots mostly small, ovate, entire or 
slightly 3-cuspidate ; the lower leaves of long shoots and 
those of the short shoots much larger, up to 10 in. long, 
with long petioles, nearly orbicular, markedly 3-lobed or 
occasionally 3-foliolate, in young plants still larger and 
usually 3-foliolate; stipules lanceolate, membranous, de- 
ciduous. Cymes mostly from the short shoots, some also 
{rom low down on the long shoots, their arrangement regu- 
lated by the mode of growth which is sympodial at two 
succceding nodes and monopodial at the third; bracts mem- 
branous; flowers greenish. Calyx cup-shaped, somewhat 
