159 
minal scar is roundly angulate, similar to that of Rhus glabra and 
Gymnocladus dioica. Xanthoxylum Americanum has terminal 
buds rising but little above the surface of the stem, and covered 
with a thick coating of short red hairs. 
Ailanthus glandulosus was figured (Fig. 5) on Plate CXXXII. 
of this journal. 
Ampelopsis quinquefolia (Fig. 26). This plant is a curious case 
of sympodial growth. After a node bearing a leaf but no tendril, 
there are quite normally two nodes bearing a leaf and also a ten- 
dril, then follows a node again without a tendril. The leaves have 
the appearance of being alternate, distichous. Where there is no 
tendril the leaf axil quite commonly contains a well developed 
scaly bud. Now it was a curious fact in all the observed cases 
that where the tips of the branches were absent, the scar belonged 
to that node where there should be no tendril. This is well worthy 
of note since in August many of the tendrils of this plant have 
fallen off and left scars, though these are much smaller than the 
terminal scars. In case of the grape it was very difficult to get 
Satisfactory tips of branches, since these tips were still growing, or 
had been eaten off by animals. In a very few cases I noticed, 
as in Ampelopsis, a scar where the node should bear no ten- 
dril, and I have figured one of these (Fig. 24). Celastrus scan- 
dens in September showed terminal scars only on the shorter, 
stronger branches, but later, in November, almost all branches 
showed terminal scars. 
“lisculus glabra (Fig. 14) and 4sculus Hippocastanum (Fig. 4 
of Plate CXXXIL.), will be discussed at the close of this paper. 
Staphylea trifolia (Fig 12, see also Fig. 3 of Plate CXXXIL of this 
journal), has a very peculiar terminal scar, owing to the fact that 
the uppermost pair of buds have so compressed the sides of the 
terminal scar as to very much decrease its diameter in one direc- 
tion and to give it the form noticed in the figure. The central por- 
tion is depressed. The figure shows the stipules. Species of 
Negundo and Acer have terminal scaly buds. 
Rhus glabra, (Fig. 21) has a roundly-angulate terminal scar. 
The fruited tips of this species remain on the plant all winter, 
dying back as far as the first leaf bud, as may be expected in the 
case of any fruited tip of a stem, ee did not fall off after the 
