1899] PODOPHYLLUM PELTATUM ~ 429 
The flower-bearing stem of Podophyllum peltatum develops exclu- 
sively from one of the short internodes of the rhizome, and is 
-axillary,never terminal. It invariably develops, so far as noticed, 
from the axil of the leaf, 7°, while the terminal bud remains dor- 
mant at the base of its frontal part. By the continued growth 
of the flower-bearing stem, the terminal bud fuses with this and 
becomes almost imbedded in its basal portion. The two stem 
leaves, Lt and Z?, are situated to the right and left of the flower, — 
occupying a position that corresponds very well to that of two 
prophylla, as these occur in the dicotyledons, an explanation that 
has been proposed by Eichler (Z. ¢.). 
Concerning the structure of 
afloral bud, it is interesting to 
notice that sometimes one of the 
scale leaves may have a small 
peltate blade developed, as 
shown in fig. ro, a. The scale 
leaves are somewhat fleshy and 
surround the very minute flower- 
ing stem. Of its two leaves, the 
a developed earlier than the ing the second one in its basal sheath; 
other. The base of the petiole — ¢, same, the sheath laid open to show 
of this leaf is dilated into a pair _ the enclosed leaf and flower-bud; mag- 
of broad wing-like stipules, S¢, eee 
which Overlap each other and enclose avery small green leat 
and a flower bud (fig. ro, 6); thus the two green leaves of 
| Podophyllum did not develop at the same time, as it might 
_ em, when we examine the plant during its flowering period 
with the leaves apparently opposite. | 
The roots are very strong and somewhat thickened. They 
develop exclusively from the short :nternodes of the rhizome, 
: Close to the lower surface, from which they proceed horizontally 
_ “0se to the surface of the soil. 
The anatomy of Podophyllum peltatum in some respects 36" 
bles that of the monocotyledons more than it does that of the 
_ dicotyledons, De Bary has, therefore, classified Podophyllum 
10. a, scale leaf with small 
