1899] PODOPHYLLUM PELTATUM 427 
out horizontally and in the same direction as the older part of the 
thizome, as if it were the main axis itself. The entire rhizome 
this represents a sympodium, composed of a series of shoots, 
each of which is terminated by a vegetative bud, B, and repre- 
sents actually a monopodium. 
In considering the arrangement of the leaves, we notice a 
very peculiar disposition. The diagram, fig. 8, is taken from a 
part of the rhizome corresponding to that shown in fig. 7, with 
the exception that instead of 
agreen leaf, as at Z, we have 
a flower-bearing stem with 
two leaves, Z* and Z?, next 
tothe terminal bud, B. All 
the leaves are alternate, but 
While the two outermost, /? 
and #, are situated to the 
tight and left of the axis, the 
four innermost, /3—/°, are 
luned about 45° to the left 
of the median plane of the ~ 
axis. Three buds are visible ide 
a diagram, the terminal, Fic. 8. Diagram of shoot of P. pelfatum. 
»and two lateral, 6* and 6?, 8, terminal, 6* and 2? axillary buds; “—/°, 
Which are not strictly axil- scale leaves; Zt and Z?, the two green stem 
lary, but have become pushed Sree 
alittle to the side, especially 6°. As stated above, the terminal 
bud femains dormant, while the bud, 4%, from the scale leaf 73, 
s'OWs out as a long, horizontal shoot, continuing the direction of 
the thizome. The bud, 42, which is developed in the axil of leaf 
B also remains frequently dormant. While this structure, ae 
Shown in the diagram, fig. 8, appears to be the most common in 
“ur plant, we have noticed, that some variations exist, ¢. £- 
3 ; é : of 
Podo “i comparing Professor Schumann’s observations with ours on the rhizome : 
a peltatum, we have noticed several important discordances. Our very 
iderab. 
» Cultivated at Berlin, did not represent as typical development 0 
a8 our Specimens, grown wild in the native country of this plant. 
